Mobile app development with Flutter for iOS and Android

We build cross-platform mobile apps with Flutter, so one codebase runs on iOS and Android, with Firebase, Flask or Node.js backends behind them.

Tell us about your project

Who this is for

  • Founders launching a consumer app on both iOS and Android
  • Companies that want a mobile companion to an existing web product
  • Teams that need an app that works with device data such as SMS or notifications

Problems we solve

Two platforms, one budget

Flutter lets one codebase ship to iOS and Android, which keeps the build and maintenance cost to a single team.

The app needs a backend

We build the API, database and authentication the app depends on, using Firebase, Flask or Node.js.

Getting through store review

We prepare builds, store listings and privacy details for the App Store and Google Play.

What you get

  • A Flutter app for iOS and Android
  • The backend and admin tools it needs
  • Store listings and release builds
  • Source code in your repository

How we work

  1. Platform and feature planning
  2. Mobile interface design
  3. App and backend development
  4. Testing on real devices
  5. App Store and Google Play submission

Stack

  • Flutter
  • Firebase
  • Flask
  • Express.js
  • AWS
  • GCP
  • REST APIs

Related work

Fintrail: AI Finance Tracking screenshot

Fintrail: AI Finance Tracking

An AI finance tracking app for users in Pakistan that reads bank SMS to categorize transactions, splits bills between friends, and tracks stock and cryptocurrency portfolios.

Key features

  • AI SMS transaction tracking
  • Automated expense categorization
  • Bill splitting functionality
  • Flutter
  • Firebase
  • Flask
  • Express.js
  • +3
View details

Frequently asked questions

Do you build native or cross-platform apps?

We build cross-platform apps with Flutter, which compiles to native code for iOS and Android from one codebase. For Mac software we write native Swift; see our macOS app development page.

Can you build the backend as well as the app?

Yes. Fintrail, for example, pairs a Flutter app with Flask and Express services and Firebase.

Will you publish the app to the App Store and Google Play?

Yes. We prepare the release builds and store listings and submit them from your developer accounts, so the apps stay under your name.

Start with a short description of the job

Tell us what you want to build and which tools you use today. We reply by email. You can also write to support@codex-labs.dev.

Tell us about your project