---
title: "I Will Build a Cross-Platform Mobile App for Android and iOS Using Flutter or React Native"
url: https://zinnhub.com/zinns/i-will-build-a-cross-platform-mobile-app-for-android-and-ios-using-flutter-or-react-native/
description: "Custom mobile apps for Android and iOS with Flutter and React Native. From simple MVPs to full apps with backend, admin panel, and CI/CD pipeline. Live preview before payment, full source code included."
published: 2026-09-29T08:59:08+00:00
modified: 2026-09-29T08:59:08+00:00
language: en-GB
---

# I Will Build a Cross-Platform Mobile App for Android and iOS Using Flutter or React Native

Need a mobile app for Android and iOS? I build cross-platform apps with Flutter and React Native — one codebase, both platforms, production-ready.

Whether you need a simple MVP, a customer-facing app for your business, or a full product with backend and admin dashboard, I handle the entire mobile stack: UI, state management, API integration, local storage, build pipeline, and app store publishing.

What I can build:

• Consumer apps — e-commerce, marketplace, delivery, booking

• Business apps — internal tools, field teams, customer portals

• SaaS mobile clients — paired with your existing web app

• Utility apps — scanners, calculators, reference tools

• Educational apps — courses, quizzes, progress tracking

• Multi-role apps — admin, staff, customer roles in one app

Full stack I work with:

Flutter · Dart · React Native · Expo · Firebase (Auth, Firestore, Storage, Cloud Messaging) · Node.js · Express · MongoDB · PostgreSQL · REST APIs · Stripe · Paystack · Flutterwave · Google Maps · CodeMagic CI/CD · Fastlane

What every app includes:

• Custom UI built to your spec (not a template)

• Android + iOS from one codebase

• Firebase or custom backend authentication

• Push notifications

• Local storage / offline support

• API integration with your backend

• Custom splash screen and app icon

• Automated builds via CodeMagic CI/CD

• APK + IPA deliverables

• Post-launch Play Store / App Store submission guide

• Full source code + documentation

• 30–60 day post-launch support (per package)

How I work:

1. You describe the app — features, users, and goals

2. I confirm scope, timeline, and price

3. I build a working version and share an APK for you to install on your phone

4. You review, request changes, and I refine

5. Final delivery — APK, IPA, source code, and deployment guide

Why clients choose me:

I’ve built cross-platform mobile apps for schools, SaaS platforms, and marketplaces. My recent school management app was built with Flutter + CodeMagic CI/CD and is deployed to both Android and iOS. Every app ships with a real APK you can install and test before final payment — no guessing whether it works.

Send me your app idea and I’ll tell you exactly what’s possible, what it costs, and how long it takes.