Techrays Labs

Technology / Flutter

Flutter app development company

One Flutter codebase for iOS and Android, delivered at a fixed price and date by senior engineers working AI-first.

Get a fixed quoteSee pricing

(01) What we build

What we build with Flutter.

  • MVP mobile apps

    A first version on both iOS and Android from one codebase, so you can put it in front of users without paying for two builds.

  • Consumer apps

    Polished interfaces with smooth animation, offline handling and push notifications for apps people use every day.

  • Fintech and wallet apps

    Onboarding, KYC capture, payment flows and transaction history with biometric login and strict validation.

  • Service and booking apps

    Scheduling, maps, payments and notifications for apps that connect customers with providers.

  • Companion apps

    Mobile apps that extend a web product, sharing the same back-end APIs and login.

  • Web and desktop from the same code

    Reuse parts of the Flutter codebase for web or desktop targets when the product needs them.

(02) Why Techrays

Fixed price, AI-augmented, yours.

  • One budget for two platforms

    Flutter builds iOS and Android from one codebase, and we price it that way: one scope, one fixed price, one date. Store submission is included, so you are not surprised by a separate bill.

  • AI on the repetitive work

    AI drafts widgets, tests and API clients, while engineers focus on navigation, offline behaviour and performance on real devices. Each build is reviewed before it goes to testers.

  • Open source, yours to keep

    Flutter and Dart are open source. The app code, store listings and signing keys are handed over to you, so you can update the app with any team in future.

(03) Ecosystem

The Flutter ecosystem we use.

  • Flutter
  • Dart
  • Riverpod
  • Bloc
  • go_router
  • Dio
  • Firebase
  • Drift
  • Flutter Test
  • Patrol
  • Fastlane
  • Codemagic

(04) Process

From scope to launch.

  1. DAYS 1–3

    01

    Scope and platforms

    We settle the screens, device targets and native features such as camera or biometrics that shape the Flutter plan.

  2. WEEK 1

    02

    Design system

    A Flutter theme and widget library built from your design, so iOS and Android stay consistent.

  3. WEEKS 2–5

    03

    Build on devices

    Features built in Dart with widget and integration tests, checked on real iOS and Android devices each week.

  4. WEEK 6+

    04

    Store release

    Signing, store listings and review submission handled for you, with crash reporting live from day one.

(05) Related

Keep exploring.

Want proof first? See the products we have shipped.

(06) FAQ

Questions, answered.

Flutter or React Native: which should I choose?

Flutter gives tight control over the interface and consistent look on both platforms. React Native suits teams that already work in React and JavaScript. We compare both against your team, budget and features, then recommend one.

Will a Flutter app feel native?

Yes for most products. Flutter draws its own interface at a smooth frame rate and can call native platform code for features such as biometrics, camera and payments when needed.

Do you handle App Store and Google Play releases?

Yes. We prepare builds, signing, store listings and review submissions, and set up automated release pipelines so later updates are routine.

Can Flutter apps work offline?

Yes. We store data locally, queue actions while offline and sync when the connection returns. We agree which screens need offline support during scoping.

Is Flutter good enough for production apps?

Yes. Flutter compiles to native code and renders its own interface, which gives consistent performance across devices. For apps that rely heavily on platform features, we check support for each before committing to the approach.

Can a Flutter app work offline?

Yes. We store data locally, queue actions made offline and sync when the connection returns, with clear handling of conflicts. Offline behaviour is agreed in the scope, because it adds work.

Who publishes the app to the stores?

We prepare the builds and listing, and publish through your developer accounts, so the apps belong to you. Store review rules can change timing, and we plan allowances for them.

Flutter or React Native, how do we decide?

Flutter suits custom interfaces and a single team that wants uniform behaviour. React Native suits teams already working in React that want to share code with a web app. We compare both for your case.

Related reading

Guides on this topic.

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