Igor T.

Flutter mobile app developer for iOS and Android. From idea or Figma to the App Store and Google Play: one developer, one codebase, no juggling freelancers. ▪ 11 apps shipped to the App Store and Google Play in the last 3 years ▪ 69 projects completed on Upwork since 2013, 8,865+ hours logged ▪ 49 client reviews | 4.9★ average ▪ $200K+ earned on Upwork | 100% Job Success | Top Rated Plus ▪ Flutter & React Native | Dart, TypeScript, Firebase | iOS, Android, and Web (with Flutter) from one codebase I'm a Mobile App Developer for founders, startups and established businesses entering the mobile app market. I take apps from an idea or Figma design to publication in the stores, then through each phase after the MVP. ◆ WHAT I BUILD → New apps and MVPs ▪ Flutter or React Native (including Expo) apps for iOS and Android, with Web included when built in Flutter ▪ From an idea, a Figma file or a half-built prototype to a store-ready MVP, scoped so it doesn't need a rewrite once you get real users → Existing apps ▪ Bug fixes, audits, performance and UI work on an existing Flutter or React Native codebase ▪ Taking over an app from another developer without starting over → App Store and Google Play release ▪ Builds, submissions and the full release process, including rejections and resubmissions, so the app actually reaches the store → Backend and integrations ▪ Node.js, Python, Firebase, Supabase or Strapi CMS backends, REST APIs and authentication ▪ Stripe, RevenueCat and in-app purchases, Plaid, PayPal, Firebase Push ▪ GPS and Bluetooth (BLE) features → AI in the product ▪ AI features built into the app itself, such as Google Cloud Vision face recognition for a matching app ◆ FLUTTER OR REACT NATIVE Flutter is my main stack: one codebase for iOS, Android and Web, with Clean Architecture and BLoC. If your app is already on React Native, I can work on it or bring in my team, with a scalable component and state structure so the code stays maintainable as the product grows. Native Swift and Kotlin only where a platform feature requires it. ◆ WHAT CLIENTS SAY ★★★★★ "Great experience working with this developer! Responsive, easy to communicate with, handled feedback well and reliable throughout. We're continuing to work together and would definitely recommend them." Femtech/Healthcare MVP App Developer ★★★★★ "This collaboration was exceptional! Responsiveness and reliability were outstanding. I'm extremely pleased with the results and look forward to collaborating again!" Flutter Mobile App UI UX Design and Development ★★★★★ "Top shelf very capable start to finish." Flutter Developer Needed to Customize Meditation App Template ◆ HOW I USE AI AI handles repetitive work. Architecture, data handling and what ships stay my decisions, and human review comes last. Tests and docs are updated with the code, so a later phase starts without guesswork. ◆ APPS I'VE BUILT AND PUBLISHED ▪ Healthcare / HIPAA: Embraya, an IVF patient tracker for medications, test results and appointments, with HIPAA-compliant architecture, an admin CRM dashboard and RevenueCat subscriptions ▪ Dating & Social: JewBuzz, with a matching algorithm, in-app chat and Google Cloud Vision face recognition; and Hingo, with RTL/LTR support for English and Arabic and location-based group meetups ▪ Fintech: CardRight, a credit card management platform with Flutter mobile apps, a Vue/Laravel SaaS web app and a landing page sharing one backend, with fintech API integrations including Plaid ◆ INDUSTRIES Dating & social · Fintech · Crypto & trading · Healthcare (HIPAA) · Wellness & meditation · E-commerce · Field services & on-demand · Mental health · Fitness & nutrition · Events & ticketing · B2B / manufacturing ◆ HOW I WORK ▪ Smaller projects solo. For larger ones I bring in my full-stack team, who have worked together for 5+ years and cover both Flutter and React Native ▪ You bring the idea or a mockup. I handle UI/UX design, development, testing and publication ▪ I stay accountable for the store publication and give a 30-day warranty ▪ Code is built to grow and docs stay in sync with it, so the next phase starts smoothly ◆ THIS WORKS WELL FOR ▪ Founders with an idea or Figma file who need a store-ready MVP ▪ Teams with an existing app that needs fixes, an audit or new features ▪ Businesses whose previous developer left and who need someone to take over ▪ Products built with AI tools that need to be reviewed, fixed and launched ▪ Apps in healthcare, fintech and crypto, where details matter → To start, send me: what the app should do, what exists today (idea, Figma file or code), the platforms, and any fixed date. Free initial estimate is on me. ▪ Available now for Flutter, React Native and MVP projects, full-time or part-time Flutter Mobile App Developer | React Native | iOS & Android Apps | MVP Development | App Store & Google Play | Firebase Updated: November 3, 2026