Flutter

Flutter app development for one codebase and two app stores

We build Flutter apps with a clear architecture, tested state management and native code where the platform demands it. In-house developers, regular builds on your phone, and the source code is yours.

  • One codebase, both platforms
  • Riverpod, Bloc or Provider
  • Laravel backends in-house
Get a free quote See our work
What is included
  • App architecture
  • State management
  • Platform channels and plugins
  • UI that fits each platform
  • Offline data and sync
  • Testing and release automation
Get a free quote Reply within one business day. NDA on request.
The problem

Where Flutter projects go sideways

You want the app on iPhone and Android, and paying two native teams to build the same screens twice does not add up. Flutter is usually where that search ends. The open question is whether the team you pick can build a Flutter app that still makes sense at fifty screens: state that does not leak between features, native integrations that hold up, and a release process that does not depend on one person's laptop.

Flutter is our main mobile stack. We use it for commerce, booking, eLearning and field-service apps, and we build the server side ourselves, as described in Laravel backends for Flutter apps. We will also tell you when Flutter is the wrong pick, because sometimes it is.

  • State scattered across the app

    The first version used setState everywhere. Now a change to the cart updates three screens and misses a fourth, and every new feature brings back an old bug.

  • A plugin that almost does the job

    A community package covers the payment gateway or the Bluetooth device, but it is unmaintained or misses one method you need. Someone has to write and own real native code.

  • Smooth on a flagship, janky on a budget phone

    Long lists stutter, images blow up memory and animations drop frames on the mid-range Android devices that most of your customers carry in their pockets.

  • It looks slightly off on iPhone

    Material widgets were shipped unchanged to iOS. Back gestures, date pickers and scroll behavior feel foreign, and users notice even when they cannot say why.

What we do

How we build with Flutter

We treat Flutter as an engineering stack with its own rules, and structure every app so a second developer can pick it up without a guided tour.

App architecture

Feature-based folders, a repository layer between widgets and the API, dependency injection and environment flavors for development, staging and production builds.

State management

Riverpod, Bloc or Provider chosen for the app's size and your team's experience, applied consistently so loading, error and empty states are handled on every screen.

Platform channels and plugins

Kotlin and Swift code behind method and event channels for SDKs without a Flutter package, plus fixes and forks of plugins that are close but not right.

UI that fits each platform

A themed design system built from custom widgets, with adaptive navigation, pickers and gestures so the app feels at home on both iOS and Android.

Offline data and sync

Local storage in SQLite or a key-value store, a queue for actions taken without signal, and background sync that reconciles with the server.

Testing and release automation

Unit, widget and integration tests run in CI, with signed builds pushed to TestFlight and Play testing tracks on every merge to the release branch.

Typical projects

Flutter apps we are asked for

01

A first product for a startup

An MVP for both stores from one team: onboarding, accounts, the core feature, payments and push notifications, built so the second release does not need a rewrite.

02

A companion app for a web platform

Your Laravel, WordPress or Moodle system already runs the business. The app gives customers or learners a phone-sized view of it through the existing data and a new API.

03

An app for staff in the field

Technicians, drivers or inspectors fill in forms, take photos and capture signatures without signal. Jobs sync when the phone is back online and the office sees them in the admin.

04

Replacing two aging native apps

Separate iOS and Android codebases have drifted apart. We rebuild them as one Flutter app screen by screen, keeping existing accounts, store listings and user data.

In depth

Widgets, state and native code in a Flutter build

Why Flutter draws its own pixels

Flutter does not wrap the buttons and lists that iOS and Android provide. It ships a rendering engine inside your app and paints every widget itself, from Dart code compiled ahead of time to native machine code. The benefit is consistency: a screen looks and behaves the same on a new iPhone and on an Android phone that is several years old, and your designer gets exactly the layout they drew. The cost is that platform look and feel becomes your responsibility. We build adaptive widgets for navigation bars, pickers, switches and scroll physics so the app does not feel like a port.

Choosing between Provider, Riverpod and Bloc

All three work. Provider is simple and fine for small apps with a handful of shared objects. Riverpod removes the dependence on the widget tree, catches more mistakes at compile time and is our usual choice for new projects. Bloc asks for more code per feature, with explicit events and states, and repays it in large apps where several developers need the same strict pattern and a clear trail of what happened. What matters more than the library is using one approach everywhere and keeping business logic out of widgets. Mixed patterns are the most common thing we clean up in Flutter apps we inherit.

When Dart is not enough

Camera, location, biometrics, payments and push notifications have maintained packages. For anything else, such as a card reader SDK, a proprietary Bluetooth device or a bank's native library, we write Kotlin and Swift and expose it to Dart through platform channels, with typed interfaces generated so the two sides cannot drift apart. Before adding any third-party package we check who maintains it and how it handles the current OS permission model, because an abandoned plugin is the usual reason a Flutter app cannot be upgraded.

Keeping it fast

Flutter is quick by default and easy to slow down. We build long lists lazily, mark widgets const where we can, keep rebuilds narrow, resize and cache images, and move JSON parsing or other heavy work to a background isolate. Then we profile on a cheap Android phone in profile mode, not on the simulator, since that is where dropped frames show up.

When we would not use Flutter

If the product is mostly an OS feature (a home screen widget, a watch app, a keyboard, an in-car experience), native code does the main job and Flutter adds weight. The same goes for very small utility apps where download size matters, and for teams with strong native developers already in place. In those cases we point you to native iOS or Android development.

Process

How a Flutter project moves week by week

  1. 1

    Scope and stack check

    We review your features against what Flutter does well, flag anything that needs native code and send a written scope with a free quote.

  2. 2

    Architecture and design system

    Folder structure, state management, routing and API client are set up first, along with themed widgets taken from the approved designs.

  3. 3

    Feature sprints with test builds

    Each sprint ends with a build on TestFlight and a Play testing track, so you try real features on your own phone and steer the next sprint.

  4. 4

    Device and performance testing

    QA runs the app across small and large screens, older Android phones and the accessibility settings of both platforms, with profiling on low-end hardware.

  5. 5

    Store release and handover

    We submit to both stores, respond to review feedback and hand over the repository, CI pipelines, signing setup and a short maintenance guide.

Deliverables

What ships with your Flutter app

  • One Dart codebase published to both stores
  • A documented architecture and state management pattern
  • Native Kotlin and Swift modules kept in the same repository
  • Automated tests and CI builds for every release
  • Signing keys, store access and source code in your hands
FAQ

Flutter questions from clients

Does a Flutter app really look native on both platforms?
It can, with some care. Flutter draws its own interface, so we add adaptive navigation, pickers, gestures and typography for each platform. A well-built Flutter app is hard to tell apart from a native one in daily use, and your brand looks identical on both.
Which state management do you use?
Riverpod on most new projects, Bloc for large apps with bigger teams, and Provider when we join a codebase that already uses it well. We pick one during architecture and document the pattern so future developers follow it.
What if we need a feature that has no Flutter plugin?
We write it. Native Kotlin and Swift code talks to Dart through platform channels, which is how we integrate payment terminals, Bluetooth devices and vendor SDKs. That code sits in your repository alongside the Flutter project and goes through the same tests and reviews.
Can Flutter also cover web and desktop?
Flutter can target web and desktop from the same codebase, and it works well for internal tools and app-like dashboards. For public, content-heavy websites that need search visibility we would still build a regular website and share only the API.
Can you add Flutter to an existing native app?
Yes. Flutter can be embedded as a module inside an existing iOS or Android app, so you can move one screen or one flow at a time. It suits teams that want to stop duplicating new features without pausing for a full rewrite.
Do you provide the backend for a Flutter app?
Yes, usually in Laravel: authentication, the REST API, push notifications, file storage and an admin panel. Having both sides in one team means API changes and app releases are planned together, and nobody argues about whose bug it is.
Can we hire a Flutter developer from you instead of a project?
Yes. You can hire a Flutter developer on a part-time, full-time or hourly basis. They join your stand-ups and your repository, and a project manager on our side handles reporting and cover.
Related

Laravel Backends for Flutter Apps

Flutter Developer

React Native App Development

Cross-Platform App Development

Mobile App API Integration
Start a project

Planning a Flutter app?

Send us the feature list or the app you want to replace. A Flutter developer will reply within one business day with questions, an honest view on fit and a free quote.

  • Free consultation and quote
  • NDA on request
  • You own the source code
  • Reply within one business day
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