We are looking for an experienced Mobile App Developer to help improve, fix, and enhance an existing Android and iOS mobile application. The ideal candidate should have strong experience with Flutter or React Native, mobile app debugging, crash fixing, UI/UX improvements, API integration, Firebase or backend connectivity, push notifications, performance optimization, and app store deployment. Responsibilities: Fix bugs and crashes in the existing mobile app Modify and enhance current app features Improve app performance, speed, and stability Update UI/UX screens where needed Integrate or fix APIs and third-party services Work with Firebase or backend services Test the app on Android and iOS devices Prepare and publish updates to the Google Play Store and Apple App Store. Requirements: Strong experience with Flutter or React Native Experience with Android and iOS app development. Ability to debug and fix crashes efficiently. Experience with API integration and Firebase/backend connectivity. Knowledge of push notifications App testing, bug fixing, and performance optimization skills. Experience publishing apps to Google Play Store and Apple App Store Please include in your proposal: Your portfolio or similar apps you have worked on Your experience with bug fixing and crash resolution Estimated timeline for completing fixes and enhancements Your availability to start We are looking for someone reliable, detail-oriented, and able to deliver clean, stable, and high-quality mobile app updates.

I currently have a digital sticker app called, Pixel Parade App which is "supposed" to be available on iTunes and google play - it features in app purchases of various digital sticker collections. The current developers cannot service my app due to internal reasons I was told bandwidth issues. I have had nothing but problems with this development team for many years trying to get this app to the market place. I need someone that can maintain this app so it is available and working as well as update the app as needed with additional features in the future. I am a designer and not a coder - I believe the app was created with Flutter. I could be wrong.

We are seeking an experienced mobile app developer to create a fully functional MVP that combines social features with an AI chat component. The app should be clean, stable, scalable, and ready for early user adoption, not just a clickable demo. Specific details about the app’s concept and logic will be shared under NDA. This project has a clear roadmap and strong vision for launch, and we’re looking for a thoughtful, skilled developer who can help architect and build a production-ready product with strong user experience, reliability, and performance. Complete UI/UX designs and flows have already been created in Figma, so this role is focused primarily on development, backend architecture, integrations, and implementation rather than design. Preference will be given to developers located in the DC, Maryland, or Virginia (DMV) area for easier collaboration and communication throughout the project, and occasional in-person meetings if needed. Deliverables & Requirements • Develop a cross-platform mobile app using Flutter or React Native • Build secure user authentication, profiles, friend systems, and group chat functionality • Integrate AI chat features via API with moderation and safeguard controls to prevent misuse • Implement reliable push notifications and time-sensitive user interactions across iOS • Set up scalable backend architecture and database infrastructure • Translate existing Figma designs into a polished, responsive mobile application • Conduct testing, debugging, and QA to ensure app stability and performance • Experience with Firebase, Supabase, WebSockets, or similar real-time technologies preferred • Deliver a functional app ready for deployment to the App Store

I’m building a multi-city, multi-state food delivery marketplace app similar to DoorDash and Uber Eats, with planned nationwide expansion. The platform includes full support for English, Arabic (RTL), and Spanish languages. This is a serious long-term project with significant growth potential. Looking for a passionate US-based agency to build something great together and provide ongoing support as the business grows. Platform Overview: Four interconnected products: • Customer app (iOS + Android) • Driver app (iOS + Android) • Restaurant dashboard (web) • Admin panel (web) Core Features Needed: • Multi-city and multi-state architecture — nationwide scalable from day one • Real-time order tracking via Google Maps • Stripe Connect, Apple Pay, Google Pay, and PayPal payments • In-app wallet system • Twilio masked calling and messaging between customers and drivers • Driver and restaurant self-onboarding portals • Background check integration for drivers • Ratings, reviews, promo codes, loyalty and referral program • Scheduled orders and contactless delivery • Surge pricing and analytics dashboards • Customer support chat integration • Refund and dispute management • Push notifications • Three languages — English, Arabic with RTL, Spanish • AWS deployment What I’m Looking For: • US-based agency with full team in the United States • Experience building food delivery or marketplace apps • Dedicated project manager for this project • Milestone-based payments • Full code ownership transfers to me • Monthly maintenance and support retainer available after launch covering bug fixes, iOS and Android OS compatibility updates, and ongoing improvements To Apply Please Include: • Brief intro about your agency and team • Links to 1 or 2 relevant food delivery or marketplace apps your agency built that are currently live • Your estimated timeline and fixed price quote • Your monthly maintenance and support retainer price after the initial 90 day warranty period • Availability for a video call with your full team Budget: Open to proposals Timeline: 3 to 4 months Experience: Expert Type: Agency only

MUST BE LOCATED IN LAS VEGAS AREA OR TWIN CITIES. Repsetta is a fitness-focused startup seeking an experienced long-term Hybrid Mobile App Developer to join our team. We are looking for someone with a strong background in mobile app development, particularly in hybrid technologies. The ideal candidate will have experience with frameworks like React Native and Flutter, and be able to develop high-quality, user-friendly applications. This is a long-term position, offering a great opportunity to contribute to innovative projects in the fitness industry.

We are building a browser-based virtual trading card pack opening experience inspired by the excitement and animation style of the Pokémon TCG Pocket app. https://www.youtube.com/watch?v=GKNsrJY4D3U Users will purchase virtual packs, open them through an engaging animated experience, receive cards based on configurable rarity odds, and optionally request shipment of physical cards. We are looking for a developer or small team capable of delivering the entire project from start to finish. Core Requirements Frontend Experience The pack opening experience should feel exciting, polished, and mobile-friendly. Features include: * Mobile and desktop responsive * Pack carousel where users can scroll through multiple pack choices * All packs may visually appear similar initially * User selects a pack before opening * Animated pack opening sequence * Smooth reveal animations * Sound effects support * Epic and Legendary card reveal effects * Fast loading experience * Modern UI and UX We want an experience comparable to modern digital card-opening games. Pack Logic Users purchase a pack and receive cards based on predefined rarity percentages. Example structure: * Common * Uncommon * Rare * Vintage * Epic * Legendary Admin must be able to control: * Hit rates * Card pools * Available inventory * Pack configurations *Inventory Management System* A backend inventory system is required. Example: Common Pool: Horsey x500 Nidoran x300 Staryu x250 Legendary Pool: Mewtwo x5 Charizard x3 Lugia x2 Admin should be able to: * Add cards * Remove cards * Edit quantities * Upload card images * Enable or disable cards * View inventory remaining When a card is awarded, inventory should decrease automatically. Pack Configuration System Admin should be able to create new packs. Examples: ShadowMind Pack Retro Pack Vintage Pack Holiday Pack Each pack should have: * Custom artwork * Custom odds * Custom card pools * Active/inactive status User Accounts Users should be able to: * Create account * Login * View collection * View opening history * View owned cards * Request shipment of cards Collection System : Vault Users should have a digital collection page showing: * Cards owned * Quantity owned * Rarity * Card images * Opening history Physical Fulfillment System After opening packs, users should have the ability to request shipment of physical cards. Requirements: * Shipping address collection * Shipment request system * Admin fulfillment dashboard * Mark orders shipped * View shipment history Admin Dashboard Admin dashboard should include: * Inventory management * Pack management * User management * Shipment management * Order history * Analytics Payments Integrate Stripe / apple pay Users should be able to: * Purchase packs * View order history * Receive purchase confirmation Technology Preference Preferred: * Next.js * React * PostgreSQL * Stripe Open to recommendations if a better stack is proposed. Deliverables * Fully functioning production-ready web application * Source code * Admin dashboard * Database setup * Mobile responsive design * Deployment assistance * Basic documentation Proposal Requirements Please include: 1. Fixed price for the complete project 2. Estimated timeline 3. Similar projects completed 4. Recommended technology stack 5. Examples of gaming, collectible, loot-box, card-opening, or marketplace projects Important Please provide one total fixed-price bid for the complete project. We are looking for a long-term development partner but want a complete build quote for Version 1 of the platform. This is a real project that will move quickly for the right developer.

Peachtree Care Health Services (PCHS) is seeking an experienced mobile app developer to update an existing iOS and Android application currently published in the Apple App Store and Google Play Store. Scope: Update existing app screens and workflows Improve UI/UX Fix bugs and compatibility issues Publish updates to Apple App Store and Google Play Review backend/API integrations Preferred Skills: React Native, Flutter, Swift, Kotlin, or existing app framework Experience with healthcare apps App Store and Google Play deployment experience Atlanta-based developer preferred Project Type: Freelance / Contract Potential for ongoing maintenance work Please provide: Portfolio links Similar apps you have worked on Hourly rate or project estimate Preference: Atlanta-area candidates

Hello , Nikita, I would like to develop a website and iOS/ Android app for my new business , basically, the business is for selling used and customers return appliances and would like to sell them on auction base . I am attaching the similar business website for your review to see if you can provide assistance to work with me . www.buybest4less.com

We are seeking an experienced mobile app developer to assist with hosting our fully built dispatch web app developed in HTML/JS. The project requires connecting the app to Supabase for efficient data storage and integrating Twilio for SMS notifications. The code is already written, so we need someone who can set up the infrastructure and ensure smooth operation. If you have expertise in these technologies and can deliver results quickly, we'd love to hear from you!