I will build a cross platform mobile app with react native and expo

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Hezron O
build a cross platform mobile app with react native and expo
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build a cross platform mobile app with react native and expo

About this gig

I build cross-platform mobile apps for iOS and Android using React Native and Expo one codebase, both platforms, faster delivery than native development.


What you get:


  • Custom mobile app development
  • Android & iOS app development
  • Flutter / React Native apps
  • Clean, bug-free, scalable code
  • API & Firebase integration
  • Modern UI/UX design
  • App Store & Play Store support


What I deliver:


  • Clean, responsive UI matching your design or brand


  • User authentication (email, social login, or Firebase Auth)


  • Backend integration (REST API, Firebase, or Supabase)


  • Real-time features where needed (chat, notifications, live data)


  • Tested on both iOS and Android before delivery


Tech stack: React Native, Expo, TypeScript, Firebase/Supabase, Reanimated for animations.


Process: I start with a quick requirements call or message exchange to confirm scope, then share progress screenshots/videos at key milestones rather than going silent until delivery.


Check my portfolio for HaoSwipe, a real estate discovery app with a swiping feed and live property data happy to share a demo video on request.

  • App type

    • Native

  • Programming language

    • JavaScript
    • Kotlin
    • PHP
    • Python
    • Swift
    • TypeScript
    • HTML
    • React Native
    • Flutter
    • Other

  • Frameworks

    • Flutter
    • NativeScript
    • Laravel
    • Angular
    • SwiftUI
    • Node.js
    • React Native

  • Purpose

    • Chat
    • Booking
    • Social networking
    • Health & fitness
    • News
    • Travel
    • Productivity tools
    • Custom
    • Ecommerce
    • Sports

  • Tools

    • Xamarin
    • Flutterflow
    • Expo
    • Firebase
    • Visual Studio Code
    • Visual Studio
    • Supabase

  • Expertise

    • Cross browser/Device compatibility
    • Performance
    • Security
    • Design
    • Ads & monetization
    • Firebase

Get to know Hezron O

Hezron O

AI Engineer Full Stack Web Mobile App Developer Automation expert

  • FromKenya
  • Member sinceSep 2025
  • Avg. response time1 hour

  • Languages

    English
Full-stack developer building mobile apps, AI-powered tools, and business websites. I work with React Native/Expo for cross-platform mobile apps, React/Next.js for web, and Python + OpenAI/Claude APIs for AI features and automation. I focus on clear communication, realistic timelines, and shipping working products — not just code dumps. Based in Kenya, available across most timezones, average response time under 1 hour.

My Portfolio

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