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Flutter

Flutter app development

One codebase, one team and the same quality on iOS, Android, web and desktop. From Antwerp, for companies across Belgium: from a new app to taking over an existing one. We co-organise Flutter Belgium and sponsor it, so its meetups can happen.

  • iOS
  • Android
  • Web
  • macOS
  • Windows
  • Linux

Why Flutter

One app, on every screen.

  • One codebase

    iOS, Android, web, macOS, Windows and Linux from the same code. One team, faster releases.

  • Your own design

    Every button and every screen the way you want it, smooth on every device.

  • Native where needed

    For the rare feature that needs native code, we write it.

Why impaktfull

Flutter is our craft, every day.

Co-organiser and sponsor of Flutter Belgium

We organise Flutter Belgium together with the community and sponsor it, so the meetups can happen. That keeps us close to the people who build with Flutter every day.

Read the case
  • xRay on a desktop

    xRay: See inside your app.

    A desktop inspector for Flutter teams: every network call, log, stored value and file of a debug build, live, on one timeline. On macOS, Windows and Linux.

    xrayinspector.dev
  • DeltaVision on a desktop

    DeltaVision: See what changed, pixel by pixel.

    A desktop app that finds every image your golden tests changed and shows exactly what moved, against a commit, a branch or a pull request.

    deltavision.app

Flutter in production

Numbers from real apps.

  • 120K+downloads on Google Play of apps we worked on
  • 6platforms from one codebase
  • 100+releases in the stores
  • 7years of Flutter in production

Minimum per the Google Play install brackets, November 2026, for Dagelijkse Kost, Weerflash, Auctim, Gus Foods, SportAmigo, Runeasi, Flutter Belgium and Will-Fill. iOS not counted.

Flutter cases

Apps you already know.

What a Flutter app costs

A price indication and a timeline.

  • MVP: the core of your app, on your API

    from €7,000

    2–4 weeks

  • A complete app for iOS and Android, on your API

    €15,000 to €40,000

    depending on the scope

What decides the price

  • The number of screens and features
  • The connection with your existing API
  • A custom design
  • Which platforms: mobile, web, desktop

All prices excl. VAT. You get the exact price after an intro call to align on what is required to create a quote.

App and backend?

These prices are for the app, on an API you already have. Should we also build the backend, the CMS or the integrations? Then it's a custom platform.

Custom platforms

Existing app

Taking over an app?

Was your app built by another team, or did the team leave? We start with a code & security health check, then a plan to continue.

Code & security health check · 1–2 weeks

About the health check

FAQ

Questions, answered.

Why Flutter and not native?

One codebase means one team, faster releases and the same quality on every platform. For the rare feature that needs native code, we write it.

Flutter or React Native?

Both build for iOS and Android from one codebase. We choose Flutter: it draws every pixel itself, so your app looks the same on every device, and it also runs on web and desktop. We have used it in production for 7 years.

When is native better?

For apps that are mostly one platform feature, like a home screen widget or a watch app, native can be simpler. For the rare native feature inside a Flutter app, we write that part natively.

Is a Flutter app as fast as a native one?

For almost every app, yes. Flutter compiles to native machine code and runs smoothly on today's phones.

Is Flutter a safe choice in 2026?

Flutter is open source, made by Google and used in production by large companies. We have built with it for 7 years and organise Flutter Belgium together with the community.

Can you take over an existing app?

Yes. We start with a code & security health check, then a plan to continue.

How much does a Flutter app cost?

An MVP on your existing API starts at €7,000 and takes 2 to 4 weeks. A complete app for iOS and Android costs €15,000 to €40,000, depending on the scope. All prices excl. VAT; you get a fixed price after an intro call to align on what is required to create a quote.

And if I also need a backend?

Then it's a platform: we build the app, the backend, the CMS and the integrations together. See custom platforms.

Who owns the code?

You do. The code is always yours, so you always stay the owner of your app. We manage the repository, CI/CD and build servers; that cost is included in our price and maintenance, so you don't buy build servers or face unexpected costs.

Can you build AI features into an app?

Yes, for example smart search, summaries or an assistant in your app. We tell you up front which AI service it uses and where your data goes.

Where is the data (GDPR and EU hosting)?

The app talks to your API. Whatever we host for you runs in Docker on EU hosting.

What happens after launch?

With Run & improve we keep your app up to date for new iOS and Android versions, monitor it and release updates.