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Project Title: Android Sports Predictions & Analytics App with VIP Subscription and Affiliate Integration
Project Description
I want to build an Android application in the field of football match predictions and statistics, featuring daily free predictions, a VIP monthly subscription model, an Admin Panel for content management, and embedded affiliate links.
Core Features & Requirements
* Free Section: Daily free predictions.
* VIP Section: Exclusive for subscribed members.
* Automated Monthly VIP Subscription: Automatically grants access to the VIP section upon payment.
* User Authentication: User Registration / Login system.
* Push Notifications: Instant alerts sent to users when new predictions are published.
* Past Results Page: Displays prediction statuses (Won / Lost / Pending).
* Statistics Page: Shows win-rate performance and historical stats.
* Admin Panel: A simple dashboard allowing me to:
* Add matches and predictions
* Set prediction type (Free vs. VIP)
* Update match results
* Send push notifications to users
* UI/UX: Clean, modern, and user-friendly design (Arabic interface initially, ready for French support later).
* Google Play Store Publishing: Preparing and configuring the app for store submission and approval.
Affiliate Integration & Special Requirement
I want to embed my affiliate links inside the app (e.g., LineBet, Binance, RedotPay).
* Crucial Feature: If a user registers via my LineBet affiliate link and makes a deposit, they should receive 1 month of FREE VIP access.
* Since affiliate platforms do not always provide real-time webhooks, please clarify the best approach:
* Manual solution: I review the registration/deposit manually and activate their VIP status from the Admin Panel.
* Semi-automated solution: Using SubID / ClickID / tracking parameters if supported.
* Please provide clear advice on whether LineBet’s affiliate system allows this type of tracking.
Content Management Workflow
* Matches & Results: Can be automated via a sports API (e.g., API-Football) or managed manually.
* Predictions (Free & VIP): Added manually by me via the Admin Panel.
* Publishing Flow: When I publish a prediction in the Admin Panel, it immediately updates the app and triggers an optional push notification.
Payment System & Policy Compliance
Please explain the best approach for payments:
* Google Play Billing vs. External Payment Links (Binance Pay / RedotPay).
* Which option is best to avoid Google Play policy violations?
* Requirement: When a user pays, VIP access must activate automatically and expire automatically when the subscription period ends.
Developer Proposal Requirements
Please include the following in your proposal:
1. Total Fixed Price
2. Estimated Delivery Timeline
3. Recommended Tech Stack (Flutter, React Native, Native Android, Firebase, etc.)
4. Workflow architecture (Manual, Semi-automated, or Fully automated)
5. Daily routine (What steps will I need to execute daily in the Admin Panel?)
6. Previous experience regarding:
* Sports predictions/analytics apps
* Monthly subscriptions & Google Play Billing
* Firebase / Custom Admin Panels
* Google Play policies for this niche
* Portfolio / Examples of similar past projects
7. Confirmation of assistance with Google Play Store upload and approval process.
Pre-Start Questions to Answer in Your Bid
1. How will we verify if a user registered and deposited via my LineBet affiliate link (Manual, Semi-automatic, or Automatic)?
2. How will VIP access be triggered after payment?
3. Should subscriptions be handled inside Google Play Billing or externally?
4. Does embedding affiliate links cause any compliance issues with Google Play policy?
5. Can you build a very simple Admin Panel, considering I do not have a technical background?
Initial MVP Scope
I want to start with a practical Minimum Viable Product (MVP) containing:
* User Authentication
* Free + VIP Sections
* Monthly Subscription Flow
* Admin Panel for manual prediction posting
* Push Notifications
* Results & Statistics Page
* Affiliate Links Integration
* 1-Month Free VIP reward mechanism (Manual verification is acceptable for the MVP phase).

Looking for app development to assist providers in healthcare settings. Have content and a browser based form currently. Need healthcare app expert to convert contents into a downloadable app, with all HIPPA regulations included as well.

I need a website and mobile apps for IOS and Android

I am looking for freelance Android development opportunities where I can help clients build, improve, and maintain Android applications. I specialize in Kotlin development and can assist with bug fixes, feature implementation, Firebase integration, API integration, UI development, and Google Play Store publishing.

We're looking to test a new mobile app. As a beta tester, you'll get early access to the app and have the opportunity to directly influence its development by providing feedback on usability, features, and overall experience.
What You'll Do
• Download and install the beta version.
• Create a profile and explore the app.
• Test features such as profile creation, matching, messaging, and settings.
• Report bugs, crashes, or unexpected behavior.
• Share honest feedback on the user experience and suggest improvements.
• You should have the capability to create 12 users and login daily for at least 14 days
• Test multiple scenarios from end to end app usability point.

We are a startup launching a local food delivery service and need an experienced Mobile App Developer to build a 7-screen MVP for iOS and Android using Flutter, covering both the customer and driver experience.

The app should include:
- Restaurant Browse & Search screen
- Menu & Item Selection screen with cart
- Checkout & Payment screen
- Live Order Tracking screen with map view
- Order History screen
- Driver App — Accept & Deliver Order screen
- Profile & Account Settings screen

Required Skills:
- Strong experience in Flutter mobile app development for iOS and Android
- Experience with Firebase (Authentication, Firestore, Push Notifications)
- REST API integration and real-time order tracking experience
- Google Maps API / geolocation integration experience
- Clean, modern mobile app design and UI/UX sensibility
- Experience building food delivery, on-demand, or marketplace mobile apps preferred
To Apply, Please Include:
- 2-3 examples of mobile apps you've built, ideally food delivery or on-demand apps
- Your experience with Flutter and real-time tracking specifically
- Your estimated timeline for a 7-screen MVP
- Your availability and hourly rate or fixed-price quote

We're looking for a mobile app developer who can move quickly, communicate clearly, and deliver a clean, working MVP ready for a local launch.

We are seeking an experienced mobile app developer who uses Ai to build a language learning app. The ideal candidate will have a strong background in AWS services and mobile app development. The project involves creating a user-friendly interface and ensuring smooth functionality across various devices and should be hosted on AWS. Only those who use Ai to design and code are needed. We prefer to host on ECS or EKS.

Real-Time Competitive Chess Platform with Crypto Payments — MVP Development

We are looking for an experienced full-stack developer or development team to help us design and build the MVP of Chesspay, a real-time competitive chess platform where players can challenge each other and compete for real monetary rewards.

Our goal is not to build a traditional betting platform or casino. Chesspay is intended to become a verified competitive chess platform built around skill-based competition, fair play, player reputation, secure transactions, and reliable match settlement.

At this stage, we are evaluating development approaches, architecture, timeline, and cost. We have a detailed product and execution blueprint available for additional context.

Core Concept

Two players should be able to:

1. Create an account and player profile.
2. Fund their account using cryptocurrency.
3. Find or challenge another player.
4. Agree on a challenge/stake amount.
5. Have the required funds locked for the match.
6. Play a real-time chess match.
7. Have the match result automatically verified.
8. Have the prize automatically settled to the winner after validation.
9. Chesspay retains a platform fee from the transaction.

Chesspay acts as the trusted intermediary between players and does not compete against them.

1. Chess & Real-Time Multiplayer

The platform should support:

* Real-time 1v1 chess games
* Legal move validation
* Chess clocks and selected time controls
* Matchmaking based on player rating
* Direct/private challenges
* Scheduled tournaments
* ELO/rating system
* Player profiles
* Game history
* PGN generation/storage
* Automatic result detection
* Draws, resignations, disconnects, and timeouts
* Reconnection handling
* Server-authoritative game state

We strongly prefer using existing and proven chess technologies where appropriate rather than building everything from scratch.

This may include:

* Stockfish
* Existing chess libraries
* Open-source board/UI components
* Existing rating algorithms

The developer/team should recommend the most appropriate approach.

2. Crypto Payments, Wallet & Match Settlement

For the initial version of Chesspay, we are planning to use cryptocurrency as the primary payment method for deposits, match funds, and payouts.

Our objective is to simplify the initial financial infrastructure by using existing third-party crypto technology rather than building traditional banking/payment infrastructure ourselves.

We are not looking to create our own cryptocurrency or blockchain.

We strongly prefer integrating established third-party:

* Crypto payment providers
* Wallet infrastructure
* Custody solutions
* APIs
* Stablecoin infrastructure
* Blockchain services

The exact provider and architecture have not yet been selected, and we want the development team to provide recommendations.

The system should support:

* Crypto deposits
* User balances
* Available and locked balances
* Match fund locking / escrow-like functionality
* Automatic settlement after a verified match
* Winner payouts
* Platform fee collection
* Withdrawals
* Refunds when applicable
* Transaction history
* Transaction status tracking
* Reconciliation
* Appropriate security controls

We are particularly interested in evaluating stablecoin-based solutions to minimize price volatility.

We are open to both custodial and non-custodial approaches depending on complexity, user experience, security, regulatory considerations, and development cost.

We do not necessarily require custom smart contracts if an existing provider can securely handle the required functionality.

3. Anti-Cheat & Fair Play

This is one of the most important components of the platform.

Because users will be competing for real value, Chesspay must have mechanisms to identify and reduce:

* Chess engine assistance
* Suspicious Stockfish-like play
* Multiple accounts
* Smurfing
* Rating manipulation
* Sandbagging
* Collusion between players
* Intentional losses
* Suspicious account behavior
* Other forms of fraud or abuse

For the MVP, we do not expect a perfect proprietary anti-cheat system comparable to Chess.com to be built from scratch.

Instead, we want a practical first version combining approaches such as:

* Stockfish analysis
* Engine correlation
* Move accuracy
* Move timing
* Critical-position analysis
* Player consistency
* Behavioral telemetry
* Account/device information
* Risk scoring
* Flagging suspicious matches
* Manual review

The system should be designed to collect sufficient telemetry from the beginning so that more sophisticated statistical or machine-learning models can eventually be developed using our own dataset.

We would like applicants to explain their proposed anti-cheat approach.

4. Player Identity & Reputation

Players should have an internal Chesspay profile containing information such as:

* Username/profile
* Chesspay ELO
* Match history
* Win/loss record
* Tournament history
* Competitive history
* Fair Play / Trust indicators
* Account status

Long term, we envision a Chesspay Passport representing a player's identity, rating, reputation, competitive history, and fair-play record.

For the MVP, this can be significantly simplified.

5. Competitive Formats

The initial product should support a limited number of formats rather than attempting to offer every possible chess format.

Challenge

A player creates a private challenge and shares it with another player.

Duel

Players are matched based on skill level and compete under standardized conditions.

A two-game series with reversed colors may also be considered to create a fairer competitive format.

Arena / Tournament

Scheduled competitions organized around rating levels or communities.

The goal is to concentrate players into specific formats and time windows rather than creating an empty matchmaking environment.

6. Admin & Trust and Safety System

We require a basic administration system where authorized staff can manage:

* Users
* Matches
* Tournaments
* Transactions
* Crypto deposits/withdrawals
* Suspicious matches
* Anti-cheat flags
* Account restrictions
* Player reports
* Disputes
* Refunds
* Payout status
* Platform fees
* Basic analytics

Ideally, an administrator should be able to search a user and quickly see their:

* Account
* Match history
* Transactions
* Risk indicators
* Disputes
* Account actions

All sensitive administrative actions should be logged.

7. Backend & Infrastructure

The platform will require a reliable backend capable of handling real-time games and financial events.

Expected areas include:

* Authentication
* User management
* Real-time game server
* WebSockets
* Matchmaking
* Tournament management
* Database
* Transaction records
* Notifications
* Logging
* Monitoring
* Backups
* Security
* Analytics/event tracking
* Admin services

The game system and financial/transaction system should be logically separated.

Financial and match settlement events should be auditable and idempotent to avoid duplicate payments or inconsistent balances.

We are open to recommendations regarding:

* Node.js or alternative backend technologies
* PostgreSQL or alternative databases
* AWS / GCP / Azure
* Managed services
* Serverless components
* Modular monolith vs. microservices
* WebSocket infrastructure

We prefer simplicity and maintainability over unnecessary architectural complexity for the MVP.

8. Web vs. Mobile

We are open to recommendations regarding the best initial platform.

Our current preference is potentially to launch web-first / responsive web / PWA to validate the product faster and reduce development cost before building dedicated iOS and Android applications.

However, we are open to alternatives such as:

* React
* React Native
* Flutter
* Native mobile
* Cross-platform development

Please explain what you recommend and why.

9. Third-Party Integrations

A major principle of this project is:

We do not want to build technology that already exists and can be reliably integrated.

We expect the development team to identify opportunities to use third-party infrastructure for areas such as:

* Stockfish
* Chess libraries
* Authentication
* Crypto payments
* Wallet infrastructure
* Stablecoin payments
* KYC
* Fraud prevention
* Notifications
* Analytics
* Cloud infrastructure
* Monitoring

The objective is to reduce development time, cost, operational complexity, and technical risk.

Please clearly identify what you recommend building internally vs. integrating from third parties.

10. Future Scalability

The initial objective is an MVP, not the complete long-term platform.

However, the architecture should allow Chesspay to later expand into areas such as:

* Advanced matchmaking
* Leagues
* Clubs
* Creator-hosted tournaments
* University competitions
* Rankings
* Advanced anti-cheat
* Automated risk scoring
* Subscription plans
* Revenue sharing
* Referral systems
* Mobile applications
* Additional jurisdictions
* Additional currencies/payment methods
* B2B tournament tools

We do not expect all of these features in the first release.

What We Need From Applicants

Please provide the following in your proposal:

1. Estimated MVP development cost

Please provide your own realistic estimate rather than simply matching the listed Upwork budget.

2. Estimated development timeline

Please include major phases/milestones if possible.

3. Recommended technology stack

Explain your recommended frontend, backend, database, real-time infrastructure, and cloud architecture.

4. Crypto architecture recommendation

Please explain how you would implement deposits, match fund locking, settlement, platform fees, and withdrawals.

If possible, mention specific third-party providers or technologies you would evaluate.

5. Anti-cheat approach

Explain how you would approach anti-cheat for an initial MVP and what you would build later as Chesspay collects more data.

6. Build vs. Buy

Identify which components you would build ourselves and which you recommend handling through existing third-party services.

7. Relevant experience

Please provide examples of previous work involving any of the following:

* Real-time multiplayer
* Chess
* Online gaming
* WebSockets
* Wallet systems
* Cryptocurrency
* Payment systems
* Fintech
* Escrow/settlement
* Fraud detection
* Tournament systems

Direct chess experience is valuable but not mandatory if you have strong experience building comparable real-time systems.

8. Team

Please specify whether you are an individual developer or development team and who would work on the project.

9. Post-launch costs

If possible, provide an approximate estimate of:

* Cloud infrastructure
* Third-party services
* Crypto/payment infrastructure
* Maintenance
* Ongoing technical support

Project Documentation

We have prepared a detailed Chesspay Startup Execution Blueprint covering the product vision, MVP, architecture, anti-cheat strategy, competitive formats, trust and safety, payments, roadmap, and long-term direction.

The document will be provided to shortlisted applicants.

Applicants are not expected to follow every technical recommendation in the blueprint.

We specifically want experienced developers to challenge our assumptions and recommend better solutions where appropriate.

Our priority is to find the simplest, safest, and most cost-effective architecture capable of validating the Chesspay concept before investing heavily in additional features.

Budget

The budget listed on Upwork is indicative and not a final development budget.

We are currently evaluating the cost and technical requirements of the project and would like applicants to provide their own realistic estimate.

Please separate the estimate into major components where possible, for example:

* UX / Frontend
* Chess & real-time multiplayer
* Backend
* Crypto / wallet integration
* Anti-cheat
* Admin panel
* Infrastructure
* QA / testing
* Deployment

We are open to working with either an experienced senior developer or a small development team.

Our priority at this stage is finding the right technical approach and obtaining a realistic understanding of the cost and timeline required to build a strong Chesspay MVP.

Developing the app we discussed.

Main folder here:
https://drive.google.com/drive/folders/1PdL1Hfy3jFdZfCEXMpyUN3EY32knYujY

** German language conversation recording. Project **

Hello!

We’re inviting native German speakers to join our everyday conversation recording project.

The task is simple. You just need to record natural conversations through our app with another participant. No experience or special equipment is required. A quiet place and two smartphones are enough, preferably an iPhone or a newer Android device.

This is an easy opportunity to take part in a language research project, receive a good review, and complete a flexible task from home.

**We need :**
** Two people will complete this task together. Pair up with another **native German speaker** to engage in **spontaneous dialogues** on a variety of topics.
- **No Partner?** No worries! We can help you find one on Upwork.

Be part of something meaningful—**sign up today!**


Project Details
- Talk About What You Love: Choose 7 topics from a list of 20, including themes like education, sports, travel, and more.
- Recording Time: Each topic requires a minimum of 20 minutes, totaling 2 hours and 20 minutes per pair.
- Payment: You’ll earn $20 per hour, which means $50 per person for completing the project.
As a pair, you’ll earn a total of $100!

---
Requirements
- A Smartphone: A good-quality phone is required. iPhones are preferred but not mandatory.
- A Quiet Space: Record in a noise-free environment.
- **A Partner is Required:** You’ll need a conversation partner for this project ( 2 people will do this task together) . If you don’t have one, no problem! We can help you find another native speaker on Upwork to do this task together.
---

Additional Information
- One-Time Opportunity: This project is only available to new participants who haven’t previously completed it on the FunCrowd app.


- Avoid Duplicate Recordings:
If you’ve already recorded this same task on the FunCrowd app, you are not eligible to participate again. Recording the same task twice will be considered invalid.
- Please refrain from applying if you’ve participated in this task recently.

Completing this project successfully offers a valuable opportunity for new freelancers to gain experience and receive a 5-star review

Join us and be part of an exciting project

We are looking for an experienced Flutter/Dart mobile app developer to build a voice assistant application for Android.

Project requirements:
- Develop a Flutter/Dart Android mobile application.
- Implement voice input and speech recognition.
- Convert user speech into text accurately.
- Process voice commands and provide appropriate responses.
- Integrate the required APIs/services for voice assistant functionality.
- Create a clean, simple, and user-friendly interface.
- Ensure the app works smoothly across common Android devices.
- Handle microphone permissions and relevant Android requirements.
- Test and fix bugs to ensure stability and reliability.

We are looking for someone with solid experience in Flutter, Dart, Android app development, and voice assistant/speech recognition features.

Deliverables:
- Complete working Android application.
- Clean and maintainable source code.
- Properly integrated voice/speech functionality.
- Testing and bug fixes.
- Build/APK suitable for testing and final delivery.

Please include examples of similar Flutter, Android, voice assistant, or speech recognition projects you have worked on.

Good communication and regular progress updates are important. We are open to discussing the exact features and timeline with the selected developer.

Hello,

I am working in Jetpack Compose Multiplatform.
I need help with implementing room database 3.

My project consist of Android and Web (wasm) targets.

I need help adding the room drivers and using indexdb (specifically for web).
This is a simple tutorial sample project.

Operations to perfotm on the db:
-all crud
-fetch todos

Very simple.
This project is for 1 hour.

We have an existing Android game (Kotlin) controlled by a real-world physical object tracked via the device camera. We're building a "plug-in-and-play" version on two Android devices (one display, one tracking camera) with zero setup for the user. Three tasks:

1. Kiosk lockdown — on power-on, our app launches automatically and is the only thing the user sees. No home screen, no OS access, no installation. (Lock Task Mode / device-owner.)

2. Object-controlled menus — replace touch input with the tracked object as a cursor (styled as a glowing fireball). Hold the cursor over a button for ~3 seconds to select it (dwell-to-select, with a visual countdown).

3. Wake-on-motion — an idle state that auto-starts the game the moment the object is moved. No tapping.

Ideal background: strong Kotlin/native Android; proven kiosk mode / single-app lockdown experience (retail kiosks, signage, arcade installs); comfortable integrating camera/tracking data (tracking already exists — you build cursor and wake logic on top).

Requirements:
Must be physically located in Luxembourg.
Active Luxembourg mobile SIM.
Android or iPhone device.
Reliable internet connection.
Available to perform a few live tests during business hours.

Task:
Test a mobile subscription/payment flow.
Share screenshots and test results.
Report any issues encountered during the testing.

# The Tips Technology

## Fractional Lead Mobile App Developer

### About The Tips

The Tips is a golf technology, media, and community platform built to make the game more engaging, connected, and fun.

We have completed the first version of our mobile application, gathered real-world feedback, and are preparing to begin development of Version 2. We are now looking for a senior developer who can take meaningful ownership of the product’s technical future.

This is not a short-term project for someone who simply completes assigned tickets. We are looking for a long-term development partner who understands startups, communicates clearly, challenges bad ideas when necessary, and can help us build a stable, scalable platform.

### The Opportunity

We are seeking a senior mobile app developer or small independent development consultancy to work with us on a monthly retainer.

The ideal candidate operates through their own business or LLC and can provide approximately 25–35 development hours per month under a predictable monthly agreement.


The engagement may begin on a fractional consulting basis, but there is an opportunity for the right person to become increasingly integrated into The Tips team as the company grows.

### Initial Assignment

The first engagement will be a paid technical audit and transition period.

Before beginning significant Version 2 development, the selected developer will:

1. Review the existing mobile application and source code.
2. Review the backend, database, integrations, hosting, analytics, and deployment process.
3. Identify technical debt, security concerns, scalability issues, and incomplete functionality.
4. Evaluate the quality and maintainability of the current architecture.
5. Confirm whether the existing application should be improved, partially rebuilt, or restructured.
6. Document the current technical environment.
7. Produce a prioritized Version 2 development roadmap.
8. Provide realistic estimates for time, cost, dependencies, and risk.
9. Help transition technical control away from the existing development provider.
10. Confirm that The Tips controls all source code, accounts, credentials, data, and intellectual property.

We do not expect a candidate to promise a complete rebuild or make major architectural recommendations before reviewing the application.

### Ongoing Responsibilities

The selected developer will be expected to:

* Lead development of Version 2 of The Tips application.
* Maintain and improve the existing iOS and Android applications.
* Diagnose and resolve bugs, crashes, and performance issues.
* Develop new product features based on an agreed roadmap.
* Review the existing architecture and recommend practical improvements.
* Maintain clean, organized, and documented source code.
* Manage or support App Store and Google Play releases.
* Maintain development, staging, and production environments.
* Review backend services, databases, APIs, and third-party integrations.
* Improve automated testing and quality-control procedures.
* Establish a dependable source-control and release-management process.
* Provide honest estimates before beginning meaningful development work.
* Identify technical risks before they become expensive problems.
* Participate in regular product and planning meetings.
* Translate technical issues into language that nontechnical founders can understand.
* Help evaluate and manage future developers, contractors, or technical vendors.
* Assist in creating a long-term technology strategy for the company.

### Required Experience

Candidates should have:

* At least seven years of professional software-development experience.
* Significant experience developing and supporting production mobile applications.
* Experience releasing applications through the Apple App Store and Google Play.
* Experience working with the framework used by the current Tips application, once confirmed.
* Strong experience with APIs, databases, cloud services, authentication, analytics, and mobile notifications.
* Experience inheriting an existing codebase from another developer or agency.
* Experience conducting code audits and technical assessments.
* Strong Git and source-control practices.
* Experience with automated testing, debugging, monitoring, and release management.
* Experience working directly with founders, business owners, or nontechnical product leaders.
* Excellent written and verbal communication skills.
* The ability to operate independently and manage priorities responsibly.
* A legally established business through which services can be invoiced.

### Preferred Experience

The strongest candidates may also have experience with:

* Golf, sports, gaming, social, community, or media applications.
* Location-based functionality.
* User profiles, avatars, leaderboards, contests, or gamification.
* Video, image, or user-generated content.
* Subscription products and in-app purchases.
* Advertising technology or sponsor integrations.
* Artificial intelligence features.
* Consumer applications with meaningful daily usage.
* Scaling applications from an early product to a large user base.
* Startup product strategy.
* Managing junior developers or specialist contractors.
* Technical due diligence or fractional CTO work.

### What Success Looks Like

Within the first 30 days, the selected developer should be able to:

* Explain the current technical environment in plain language.
* Identify the most important technical risks.
* Confirm ownership and access to all essential systems.
* Produce a written technical audit.
* Recommend a practical Version 2 plan.
* Establish a clear development workflow.
* Provide transparent estimates and priorities.
* Resolve at least one meaningful existing issue or complete one small improvement.

Within the first 90 days, the selected developer should:

* Have full working knowledge of the application.
* Be releasing improvements through a controlled process.
* Have improved stability, documentation, and accountability.
* Have begun delivering prioritized Version 2 functionality.
* Provide The Tips with confidence that its technology is being managed responsibly.

### Working Relationship

This position is expected to begin as a remote fractional engagement. Candidates located in the United States are preferred. Houston-area candidates are especially welcome, although location will not outweigh experience and fit.

The developer should be available for:

* One regularly scheduled planning meeting each week or every other week.
* Reasonable communication through email, phone, Slack, or a similar platform.
* Timely responses to urgent production issues.
* Clear notification when schedules or estimates change.
* Monthly written summaries of work completed and work planned.

We are not seeking around-the-clock availability. We are seeking consistency, accountability, and clear communication.

### Compensation

We anticipate a monthly retainer in the range of approximately $4,000 to $7,500, depending on:

* Monthly hours included.
* Seniority and experience.
* Scope of responsibility.
* Technical leadership capabilities.
* Availability for urgent issues.
* Whether the candidate is an individual consultant or a small consultancy.

All additional hours, rollover policies, response expectations, and out-of-scope work must be agreed upon in writing.

### Ownership and Confidentiality

All work created for The Tips must be considered work made for hire to the fullest extent permitted by law.

The Tips must retain complete ownership of:

* Source code.
* Product designs.
* Documentation.
* Databases and user data.
* Cloud environments.
* Domains.
* App Store and Google Play accounts.
* Analytics platforms.
* Third-party service accounts.
* Credentials and administrative access.
* Intellectual property created during the engagement.

The selected developer will be required to sign confidentiality, intellectual-property assignment, and independent-contractor agreements.

The use of subcontractors must be disclosed and approved in advance.

Project Overview
To develop the HomeZ website and cross-platform mobile application (iOS & Android), an AI powered real estate marketplace that enables users to buy, sell, rent, trade, auction, and discover properties through a seamless digital platform. The solution will simplify property transactions, enhance user experience through AI-driven recommendations, and provide integrated communication and marketing features across both web and mobile platforms.

Project Objectives
* Develop a scaleable web and cross-platform mobile application (iOS & Android) for HomeZ real estate marketplace.
* Enable users to buy, sell, rent, trade, participate auctions, and discover real estate properties through an intuitive and user friendly platform
* Intergrate AI-powered recommendations to help users identify relevant properties based on their preferences and requirements.
* Provide secure communication features between buyers, sellers, bidders, and property stakeholders
* Implement property management tools to simplify property listings, tracking and management
* Create a seamless digital experience that enhances accessibility, engagement and efficiency across web and mobile platforms
In Scope
* User management: User registration, login, profiles, and account management for buyers, sellers,
* Property Marketplace: Property listing, search, filtering, viewing and discovery features for buying, selling, renting, trading and auctioning properties
* Property Auctions: Features to create, manage, participate in, and monitor property auctions
* Property Management: Tools for managing property listings, inquiries, and tranaction activities
* Communication System: In-app messaging and communication tools between users
* Web & Mobile Platforms: Responsive web application and mobile application for iOS and Android.
* Admin Management: Dashboard for managing users, properties, auctions, reports, and platform activities.
Notifications: Alerts and updates for listings, messages, auctions, and user activities.

Mobile Sports App (Part-Time / Advisory)

About the App
Radar is a mobile app for youth sports parents and athletes. It solves a real problem: parents miss the play because they're fumbling with their phone. Radar uses a look-back video buffer (15, 30, or 60 seconds) so parents can tap after the moment happens and still capture it. Clips are automatically organized by game and event in the cloud. Athletes also get a built-in stat-tracking HUD during recording, a shareable performance card for recruiting, and a clip-sharing feature called RosterDrop to share footage.

The app is built in Expo (React Native), with a Supabase backend (auth, storage, RLS), an Express API layer, and RevenueCat for subscriptions.

The Situation
I'm a non-technical founder building this myself with the help of Replit AI. I've gotten further than I expected but would like to accelerate progress. The app is running, core features are implemented, and we're approaching launch. But as we move into the final stretch, I'm hitting the kinds of technical challenges that require mobile engineering experience to solve quickly and correctly: native module conflicts, Expo build configuration, performance edge cases, database migration timing, and more.

What I Need
A seasoned React Native / Expo developer who can:
Be available on an as-needed basis (a few hours a week, more during crunch)
Review code, diagnose issues, and explain solutions clearly to a non-technical founder
Step in and write or fix code when needed
Help prioritize what to tackle before launch vs. after
Flag issues I don't know to ask about
Ideal Background

Flexible hours, async-friendly
Hourly rate preferred
Looking to start immediately
If you enjoy helping founders ship real products and don't mind a codebase built with a lot of AI assistance that needs an experienced eye, this is a good fit.

I need assistance to bring a bookkeeping app live on the Apple and Google Play stores. The app's UI is ready, but I require technical expertise to handle the deployment process. The ideal candidate will have experience in mobile app development, specifically for iOS and Android, and be able to ensure a smooth launch on both platforms.

We are looking for a freelancer with Android smartphone, who is located in Vietnam. We need to test usability of M0M0. The task will be to check how the payment method work.

Requirements:
- Located in Vietnam;
- Android smartphone user;
- M0M0 user.

Please in the response to the job post confirm that you are located in Vietnam and you use Android smartphone and M0M0.

We are looking for a native Android developer who is skilled with Kotlin, Jetpack Compose, and Android Jetpack libraries to work on our existing app. The application is an English learning platform built with MVVM architecture. It includes grammar and pronunciation courses, audio and video lessons, speech recognition, and other interactive learning features.

The project consists of two major milestones:

Refactoring and extending the existing Courses module (Grammar and Pronunciation) based on new designs and specifications.
Implementing a new Audio Checking lesson type, which is a separate learning feature from the existing Courses module. The app already supports Audio and Video lessons, and this new lesson type will integrate alongside those existing lesson types.

You'll be expected to tweak existing screens, create new screens, implement new functionality, integrate with the provided APIs, and ensure the implementation matches the supplied designs and specifications.

To ensure you understand what is needed for this task, start your proposal with "EngClub".

Attachment: The attached document covers the Courses milestone. Detailed functional specifications (covering pronunciation, speech recognition, auto-play settings, and UI behavior) will be shared with shortlisted candidates or after hiring.

Maintenance and improvements for the XIUM iOS application.

The work includes:

Fixing identified UI/rendering inconsistencies.
Updating project packages and dependencies to their latest stable and compatible versions.
Implementing Google Sign-In on iOS and ensuring it works correctly with XIUM’s existing authentication and account system.
Ensuring the existing application remains stable and functional after the updates.

The developer is already familiar with the XIUM project and its existing codebase.

About the project
We're a product team running a usability study on the sign-up and onboarding experience of a regulated crypto trading app. We want to watch real first-time users go through the whole journey — from seeing an ad to placing their first trade — so we can find where it's confusing and where people drop off.
You'll be using your own account (you keep it), on your own phone. We never ask you to send us documents, passwords, or verification codes.

What you'll do (~45–60 min)
1. Click the landing page link we send you
2. Download the app and create a new account
3. Complete identity verification (KYC) with your own government-issued ID
4. Make a small first deposit — the minimum your payment method allows
5. Place one small trade
6. Record your entire screen for steps 1–5, thinking out loud where you can
7. Write 5–8 sentences of honest feedback: what confused you, where you hesitated, what you'd change
Occasionally we may come back with 1–2 short follow-up questions, or ask you to try one extra scenario (~10–15 min) — billed at the same hourly rate.

Who we're looking for
Two groups — state clearly in your application which one you're in:
- Group A — you currently live in Germany or the Netherlands
- Group B — you currently live in France, Italy, Poland or Spain
For both groups:
- You hold citizenship of a European country
- You are currently resident in the country you list, with ID/address that matches
- You have never registered an account with the app we'll send you (verifiable on our side — please be honest, mismatches won't be paid)
- Comfortable completing identity verification with a valid government-issued ID
- Able to record your phone screen for the full session (built-in iOS/Android screen recorder is fine)
- You can write your feedback in English; feel free to speak your own language out loud in the recording

What this costs you: nothing
To place a trade you'll need a small deposit — the minimum your payment method allows (roughly €10–20 is enough). This money stays yours. It's your account and your funds; you can withdraw it back to your bank after the study, or simply keep it. We only need to see that the deposit and trade flows work, not how much you put in — please do not deposit more than the minimum.
If anything goes wrong and you are unable to withdraw your funds, tell us — we will make you whole, no questions asked.
Many first-time users in your region are also eligible for a new-user bonus from the app. Whatever you receive is yours to keep, on top of your hourly pay. (We can't promise a specific amount — eligibility depends on the app's own campaign rules, not on us.)

Deliverables
- ✅ One unedited screen recording covering landing page → first trade
- ✅ 5–8 sentences of written feedback
- ✅ Your residence country + nationality stated in the application

Compensation
- Up to $18 / hour, paid through Upwork. Most testers finish the whole session in 1–1.5 hours; the contract is capped at 2 hours per tester (tell us beforehand if you think you'll need more).
- Optional follow-up (one extra scenario or a 15-min call) is billed at the same hourly rate — only if we ask and you agree.
- Your deposit and any new-user bonus stay in your own account. You can withdraw just like your own money

Privacy
Your identity documents go only to the app's own verification flow, under its privacy policy — never to us. In your recording you may blur or skip the frames showing your ID document and your face scan; we only need to see the screens, buttons and error messages, not the contents of your document. Recordings are used for internal product research only, are never published, and are deleted at the end of the study.

To apply, please answer
1. Which country do you currently live in? (city optional)
2. What is your nationality?
3. Which crypto exchanges or trading apps have you ever registered an account with? (list all — "none" is a perfectly good answer)
4. What phone will you use (iOS / Android), and have you screen-recorded on it before?
5. Do you have a valid government-issued ID from an EEA country?
6. Are you comfortable making a small deposit (at least €1) that remains your own money and can be withdrawn afterwards? (Yes / No / I'd like more detail first)

I am looking for an experienced free lance developer with market place app experience. I am building a 2 sided marketplace app where customers can request a verified safety companion to meetings and trips, or other situations where they would like extra support.

Turnkey Needed — WebGL 3D Interactive Map & Cross-Platform Mobile App Engine
PROJECT OVERVIEW:
We are seeking an experienced full-service software development person/agency to build a high-performance 3D spatial mapping and rangefinder platform. The platform consists of two core entry points:
1. Instant Web Viewer (Browser Utility): An ultra-fast (1.0s load time) WebGL/WebAR 3D spatial viewer and GPS distance engine running natively in mobile browsers (Safari/Chrome) via QR codes. Zero app download required. Optimized for low latency.
2. Cross-Platform Mobile App (iOS & Android): A mobile app featuring a multi-location directory, offline pre-downloadable 3D asset bundles (~150MB), 4K video player, green slope heatmap shader overlays, and an interactive 3D rangefinder.
DATA INPUTS PROVIDED BY OUR TEAM:
(Note: Data capture is handled in-house. Your team will receive the following raw assets per location):
● Video Captures: 4K/60FPS Log video passes (centerline, orbit, and return passes).
● Telemetry Data: Sub-meter RTK GPS CSV log files (latitude, longitude, altitude, timestamp).
● Elevation Data: Digital Terrain Model heightmaps (.TIF / .ASC).
● Ground LiDAR Scans: High-density ground LiDAR mesh scans.OBJ / .PL
REQUIRED DELIVERABLES BY MODULE:
MODULE A: 3D Asset & Photogrammetry Processing
● Process raw video keyframes and LiDAR terrain heightmaps into photogrammetry point clouds.
● Perform Boolean mesh stitching to fuse high-density ground LiDAR scans onto base terrain models.
● Decimate 18-section spatial meshes down to under 100k polygons per section for fast mobile browser rendering.
● Bake 2K texture atlases (Diffuse, Normal, Roughness) and export binary .GLB files.
MODULE B: WebGL Canvas & Browser Engine (Next.js / Three.js)

We have a live mobile app (Flutter) experiencing user data issues — data not saving, records disappearing, duplicate entries, or data showing incorrectly after sync. We need an experienced mobile developer to diagnose the root cause and ship a reliable fix.

The Problem (symptoms we're seeing)
User data occasionally fails to save or disappears after app restart
Duplicate records appear after syncing (same item saved twice)
Data changes made offline don't merge correctly when the device comes back online (conflicting/overwritten data)
Some users report seeing stale or incorrect data after an update
Occasional crashes or frozen UI tied to loading/saving user data

Likely Root Causes (for context — please verify, don't assume)
Race conditions in local storage or backend writes (e.g., offline queue flushing while new writes come in)
Poor conflict-resolution strategy for offline-first sync (no last-write-wins or merge logic)
State management issues (state updated in the wrong place, stale state re-render, duplicate writes triggered by rebuilds)
Local DB (SQLite/Hive/Realm) and remote DB (Firebase/REST API) falling out of sync
Missing unique constraints/idempotency keys causing duplicate record creation
Improper handling of connectivity changes (online/offline transitions)

What We Need You To Do
Reproduce the reported data issues using our existing app and test accounts
Investigate and identify the actual root cause(s) — don't guess, trace it
Implement a fix that is safe for existing production data (no data loss during the fix/migration)
Add safeguards to prevent recurrence (e.g., proper conflict resolution, idempotent writes, unique keys)
Test across offline/online transitions and multiple devices/accounts
Document what was wrong and what you changed

Requirements
Proven experience with Flutter in production apps
Strong understanding of local storage (SQLite/Hive/Realm/AsyncStorage) and remote sync (Firebase/REST/GraphQL)
Experience debugging offline-first sync and conflict resolution
Comfortable working with an existing codebase (not building from scratch)
Clear communication — you'll need to explain the root cause in plain terms

Nice to Have
Experience with Firebase Realtime Database / Firestore offline persistence quirks
Experience writing data migration scripts that don't lose existing user data
Familiarity with crash/error reporting tools (Sentry, Crashlytics)

Deliverables
Root cause analysis (short written summary)
Fixed, tested code merged/delivered in a working build
Notes on any data migration needed for existing users
Brief testing checklist showing the issue no longer reproduces

How to Apply
Please share:
A similar data-loss/sync bug you've fixed before (what was wrong, how you fixed it)
Your experience with offline-first architecture and conflict resolution
Estimated timeline and availability

Native Australian ( English) wake up words Recording.

We are searching for native speakers of Australian (English) to participate in a short and simple voice recording project using the Funcrowd mobile app.

Execution plan:
- Record 185 short wake up sentences need to record using the Funcrowd mobile app.
- The task takes only about 20 to 25 minutes to complete.
- You will need a quiet environment and a smartphone with good audio quality (iPhone or newer Android phone preferred)
Payment:
- $18 USD for completing the task.
- Bonus: Receive a 5-star rating for your completed work.
- We are accepting 200+ participants , feel free to refer friends and family!

Requirement:
- Must be an Australian English native speaker .
- Can only participate once. If you have previously recorded the same 185 ( key word :( hi Geely) sentences on the Funcrowd app, then you are not eligible for this task again.

If you're interested and meet the criteria, we’d love to have you join!

We are seeking an experienced mobile developer to enhance our Cab aggregator app. The ideal candidate will have a strong background in developing ride-hailing applications and be proficient in both iOS and Android platforms. Responsibilities include improving app performance, fixing bugs, and implementing new features to enhance user experience. The role requires collaboration with our team to ensure seamless integration and timely delivery of updates.

About Us

We are a growing IT consulting company specializing in delivering high-quality digital solutions for clients worldwide. Our expertise includes website development, mobile applications, enterprise software, AI solutions, SharePoint, Power Platform, UI/UX design, and cloud-based applications.

We're looking for experienced Business Development Partners, Sales Consultants, IT Consultants, Agencies, and Freelancers who can help us generate projects from the USA, Australia, Europe, Canada, and the UK.

What We're Looking For

We're seeking professionals who have an existing network or proven experience acquiring clients for IT services.

You should be able to:

Generate qualified leads and IT projects.
Connect with startups, SMEs, and enterprise clients.
Conduct discovery calls and understand client requirements.
Coordinate with our technical team during proposal discussions.
Build long-term client relationships.
Help close deals and expand into international markets.
Services We Offer
Custom Website Development
E-commerce Development (Shopify, WooCommerce, Magento)
Mobile App Development (iOS, Android, Flutter, React Native)
AI & Chatbot Solutions
CRM & ERP Development
SaaS Product Development
SharePoint & Microsoft 365 Solutions
Power Apps & Power Automate
UI/UX Design
Cloud & DevOps Services
Ongoing Maintenance & Support
Ideal Candidate
Experience in IT sales or business development.
Existing client network in the USA, Australia, Europe, UK, or Canada.
Excellent communication and negotiation skills.
Ability to generate consistent project opportunities.
Familiarity with software development services.
Self-motivated and results-driven.
Compensation

We're open to flexible collaboration models:

High commission per successful project.
Revenue sharing.
Fixed payment + commission.
Long-term partnership.
Exclusive regional partnerships for the right candidate.
Why Partner With Us?
Experienced development team.
Strong portfolio across multiple industries.
Competitive pricing.
Transparent communication.
Dedicated project managers.
High-quality delivery with ongoing support.
Long-term collaboration opportunities.

If you have experience bringing IT consulting projects and want to build a long-term partnership with a reliable development company, we'd love to hear from you.

When applying, please include:

Your experience in IT sales or business development.
Industries you've worked with.
Countries where you have strong connections.
Examples of projects you've helped close.
Your preferred partnership model.

Native United Kingdom (UK) English Conversation Recording Project

We’re looking for native UK English speakers to record natural, casual conversations using our app. The topics are simple and relatable—such as sports, entertainment, music, relationships, and everyday life.

Requirements

• Device: Smartphone only (new Android or iPhone is recommended)

• Environment: Quiet, echo-free room (prefer furnished room for recording)

• Participants: Each session requires two people in conversation

• If you already have a partner—wonderful!

• If not, we can pair you with someone via Upwork

Recording Time

• Choose 7 topics

• Record at least 20 minutes per topic

• Total recording duration: 2 hours 20 minutes (for each pair)

Compensation

• $25 per hour per person

• Complete the full session (2.5 hours) to earn $62.5 per person

• Total payment for both participants: $125

Eligibility

• No professional experience needed

• Open to new participants only means if you have already completed this same conversation task on Funcrowd App then you are not eligible.

(Anyone who has already completed this same project on the Funcrowd app is not eligible)

• Each person can participate only once

(Duplicate recordings will be considered invalid)

Bonus

• Receive a 5-star score upon successful completion

This is an enjoyable and uncomplicated task with a fantastic opportunity to earn and receive a 5★ review.

Project Overview:
We are looking for a mobile app developer to build an MVP (Minimum Viable Product) that allows users to capture images through a camera overlay frame, generate a precisely scaled PDF document, and view it.
Key Features & Requirements:
Camera & Overlay: A custom camera view with a fixed reference frame/overlay to align objects properly.
PDF Generation: Capture the framed image and generate a PDF document that maintains precise real-world dimensions and scale (including a reference scale bar).
Document Viewer: A built-in viewer to check and review the generated PDF files.
Tech Stack / Skills Needed:
Cross-platform mobile development (e.g., Flutter) or native (iOS/Android)
Camera API integration
PDF generation with precise scaling

WePrep is a mobile-first shared checklist app that helps families and small groups prepare together, assign tasks and track what is completed.

We are looking for a practical tester to thoroughly test both the WePrep website and web app.

Your responsibilities:

- Test the app on mobile and desktop
- Check sign-in, Groups, invitations, checklists, Sections, task assignments, notifications and other key functions
- Identify bugs, broken links, confusing behaviour and layout issues
- Test common user journeys from a new user’s perspective
- Provide straightforward UI/UX suggestions based on common sense
- Check whether buttons, labels and navigation are easy to understand
- Record clear reproduction steps, screenshots or short screen recordings for each issue
- Rank findings by severity and importance

You do not need to be a developer, but you should be observant, systematic and comfortable testing web or mobile applications.

Please include examples of previous app-testing, QA or UI/UX feedback work. Familiarity with iPhone, Android and desktop-browser testing is preferred.

The final deliverable should be a concise report listing:

- Bugs found
- Steps to reproduce
- Device and browser used
- Accompanied Screenshots or recordings
- Recommended UI/UX improvements