React Native | FlutterFlow | iOS | Android | Cross-platform

Starting at

$

80

/hr

About this service

Summary

I offer end-to-end mobile app development for startups and small businesses, building high-quality apps for both iOS and Android using Flutter, React Native, and no-code tools like FlutterFlow. What makes me unique is my ability to deliver fast, cost-effective solutions by combining traditional development with no-code platforms, automation tools, and scalable backends like Supabase.

What's included

  • 📱 Custom Mobile App Design

    Clean, user-friendly app screens for iOS and Android I’ll design mobile screens tailored to your brand and user flow, making sure your app looks great and is easy to use on any device.

  • ⚙️ Cross-Platform App Development

    Build once, run on both iOS and Android Using Flutter or React Native, I’ll develop your app to work smoothly on both platforms without needing two separate codebases.

  • 🚀 App Prototyping (Clickable Demo)

    Test your app idea before coding Get a working prototype to show investors or test with users—built with FlutterFlow, Framer, or other no-code tools.

  • 🧠 Backend Integration

    Connect your app to a database and server I'll connect your app to Supabase or Firebase to handle login, data storage, and user actions securely and reliably.

  • 🔄 App Automation & Workflows

    Add smart features like email triggers or AI actions Need your app to do more automatically? I can set up n8n workflows or AI-based automations to save time and streamline tasks.

  • 🧪 App Testing & Bug Fixes

    Make sure your app works well on real devices I’ll test your app on different devices and fix any issues so your users get a smooth experience from day one.

  • 📦 App Store & Google Play Deployment

    Launch your app to the public I’ll help you get your app approved and published on the App Store and Google Play, including setting up app icons, screenshots, and descriptions.

Recommendations

(5.0)

Nathalie Gerschtein • Haleon

Client • Aug 1, 2025

Justin did a great job helping us with our mobile app. He quickly understood what we needed, fixed issues fast, and added new features that really improved the user experience. He’s professional, easy to work with, and knows his stuff. If you need a solid mobile app developer, Justin’s your guy.

Ruslan Desyatnikov • QA Mentor

Client • Aug 1, 2025

Justin was a huge help in getting our project across the finish line. He jumped in, understood the Lovable platform quickly, and delivered great results fast. Super easy to work with, responsive, and reliable. I’d definitely recommend him to anyone who needs a smart, dependable developer.

James Brooks

Client • Jan 8, 2025

Working with Justin was an exceptional experience! He played a crucial role in a startup project that involved API integration with AI-powered solutions. His deep technical expertise in full-stack development, combined with his ability to deliver scalable and reliable solutions under tight deadlines, was key to the project's success. Justin is not only highly skilled in React, Node.js, and cloud technologies but also a great collaborator, always willing to go the extra mile. He's a nice talent!


Skills and tools

Flutterflow Developer

Mobile Engineer

React Native Developer

Dart

Dart

Expo

Expo

Flutter

FlutterFlow

FlutterFlow

React Native

React Native

Industries

Healthcare
FinTech & Payments
Sports