Flutter App Development Company.

Flutter is now a mainstream, low-risk choice, and the wider industry is already standardising on it.

Nearly 30% of new free iOS apps are now built with Flutter, up from around 10% in 2021, and over one million developers use it, according to Dev Newsletter's State of Flutter 2026 report.

That scale matters when you are hiring a partner, because a large, active talent pool keeps your app maintainable for years.

It also leads its category. Flutter was the most-used cross-platform framework for the fourth year running in 2026, with roughly 175,000 GitHub stars against React Native's 125,000.

Choosing the market leader lowers the risk of building on a framework that fades.

It is no longer mobile-only, either. 64.4% of Flutter developers now target the web from the same codebase, so the single-codebase saving extends beyond iOS and Android.

If you want the background, our guide to cross-platform app development covers the trade-offs, and you can see the companies using Flutter at scale.

Dart is the reason a Flutter app can feel native. It compiles to native code, and its null safety removes a whole class of runtime crashes before your app reaches a user.

The framework moves fast. Flutter 3.41 shipped with 868 commits from 145 contributors, and Google has scheduled four stable releases across 2026.

A framework maintained that actively is a lower-risk choice.

It also keeps pace with Apple. Flutter 3.38 adopted LLDB as the default debugger for iOS 17 and above and Xcode 26, so one codebase stays current as new iPhone releases land.

The tooling is production-grade. Flutter 3.35 added Widget Preview and a feature-flags framework, and both speed up delivery for teams like ours.

Around that framework we run Laravel and MySQL on the back end, Meilisearch for fast search, Docker for reproducible environments and SonarQube for code quality.

Our dedicated Flutter app developers handle the full build, from interface design and backend to third-party API integration and the search layer, so one team owns the product end to end.

Every Flutter project moves through the same five stages, so you always know what happens next.

1. Discovery and scoping

We pin down the users, the must-have features and what a good launch looks like, and turn that into a scope and a build plan.

2. UX and UI design

Screens are designed in high fidelity and wired into a prototype you can tap through before any production code exists.

3. Build

One Flutter codebase grows in short iterations, and every platform in scope gets the same release.

4. QA and testing

Accessibility, performance and security checks run alongside device testing on iOS and Android, all before launch.

5. Launch and support

Submission to the App Store and Google Play is on us, and so is the maintenance and improvement that follows release.

Choosing a Flutter app development company is mostly a question of who is accountable. Plenty of firms can write Dart; fewer can hand you an accredited, in-house UK team that owns the whole build.

Arch holds ISO27001, ISO9001 and Cyber Essentials Plus accreditations, which give you an assurance on security and data handling that offshore alternatives cannot always match.

That matters most when your app touches sensitive data or runs at serious scale. Those certifications shape how we handle your users' information and how we prove it.

You work with the people building your product, in your timezone, under UK contract law. If you want to hire Flutter developers UK-wide who build in-house, this is that team.

If you are still deciding whether the product should lead on mobile, web or both, our piece on planning app and web together is a useful starting point.

What is a Flutter app development company?

One that builds with Google's Flutter framework, so a single codebase covers iOS, Android, web and desktop, and that supports the app after launch. Arch does this in-house in the UK, from discovery through to App Store and Google Play release.

How much does a Flutter app cost to build?

There is no fixed price. Cost depends on how many features you need at launch, whether it is mobile, web or both, and how much design and integration is involved.

Building one Flutter codebase instead of two native apps is usually where the saving comes from.

How long does Flutter app development take?

It depends on scope. The discovery phase produces a build plan and your timeline, so the dates are agreed before any code is written.

A Flutter app development company working from one codebase can usually get you to launch sooner than separate native builds would.

Is Flutter production-ready for serious companies?

Yes. It leads its category by adoption, on the Dev Newsletter figures above, and Google ships stable releases on a fixed schedule.

Are Flutter apps genuinely native or hybrid?

Flutter apps compile to native code and render their own interface, so they behave like native apps rather than a web page in a wrapper. For most products, users cannot tell a well-built Flutter app from a native one.

Can one Flutter codebase cover iOS, Android, web and desktop?

Yes, and that is the main reason to choose it. The same codebase targets all four, so extending an app to web or desktop later does not mean starting again.

What does ongoing maintenance and support involve?

After launch we maintain and update your app as Flutter and the app stores change: new iOS and Android releases, security patches and improvements. Because there is one codebase, each update ships once.

Can you migrate our existing native app to Flutter?

Yes. We migrate and rebuild native iOS and Android apps in Flutter so future changes ship from one codebase instead of two.

We start with a discovery pass to map what exists, then plan the rebuild around your users.

How do you handle App Store and Google Play submission?

Submission is part of our launch stage. We prepare the builds, assets and metadata, handle the App Store and Google Play review, and see the app through approval.

If a store flags something, we resolve it and resubmit.

How do we know your team is secure and credible?

You work directly with the in-house team under a UK contract, and you can inspect the accreditations listed above on request.