Zentury
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TechnologiesFlutter

Development company

Flutter

One codebase for iOS, Android and the web. Same look on every screen.

Flutter is Google’s toolkit for building apps from a single Dart codebase. We use it when you want one team, one release schedule and an interface that looks exactly the way it was designed, on every phone.

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Developer holding a phone in front of a laptop with a bright screen
DartMaterial DesignGetX
booking_card.dart
class BookingCard extends StatelessWidget {  final Slot slot;  const BookingCard(this.slot, {super.key});  @override  Widget build(BuildContext context) => Card(    child: ListTile(      title: Text(slot.time),      trailing: FilledButton(        onPressed: () => book(slot),        child: const Text('Book now'),      ),    ),  );}

01 — Services

What we build with Flutter

From a first version you can put in front of users to apps that need to run on every screen your customers own.

  1. Cross-platform apps

    One Flutter app for iPhone and Android, with the platform details (back gestures, permissions, store rules) handled properly on each.

  2. Flutter consulting

    Not sure Flutter fits? We look at your product, your team and your roadmap, and give you a straight answer before any code is written.

  3. Flutter web apps

    Dashboards, portals and internal tools that share code with your mobile app, so a feature built once shows up everywhere.

  4. App UI design

    Flutter draws every pixel itself, so custom designs come out exactly as drawn. We design the screens and the motion together.

  5. Back-end & APIs

    Firebase, Supabase or a custom Node.js API: whatever your app needs to log people in, store data and take payments.

  6. Testing & maintenance

    Widget tests, integration tests and real-device checks, plus updates when new iOS and Android versions arrive.

  7. Team augmentation

    Experienced Flutter developers who join your existing team, follow your process and pick up tickets from week one.

  8. Migration & integration

    Moving from two native apps, or adding Flutter screens to an app you already have, one section at a time.

ScrollSwipe

02 — Why Flutter

One Flutter codebase vs. two native apps

What changes when one Flutter app replaces separate iOS and Android builds.

FlutterTwo native apps

  • Code you maintain

    One Dart codebase covers both stores

  • Time to launch on both stores

    Features ship to iOS and Android together

  • Same design on every device

    Flutter renders the UI itself, so screens match

  • Access to phone features

    Plugins cover most; we write native code for the rest

03 — The technology

Key things to know about Flutter

Flutter is an open-source UI toolkit from Google. Apps are written in Dart and compiled to native code, so they start quickly and scroll smoothly, even on older Android phones.

Instead of borrowing the phone’s built-in buttons and lists, Flutter draws the whole interface itself. That is why a Flutter app looks identical on an iPhone and a budget Android, and why custom, branded designs are easy to build.

It is a strong choice for consumer apps, fintech, e-commerce and any product where the design matters. If your app leans heavily on the newest platform-only features on day one, we’ll talk you through the trade-off.

Apps built with Flutter

  • Google Pay
  • BMW
  • Alibaba
  • eBay Motors
  • Toyota
  • Nubank
  • ByteDance
  • Google Pay
  • BMW
  • Alibaba
  • eBay Motors
  • Toyota
  • Nubank
  • ByteDance
  • Google Pay
  • BMW
  • Alibaba
  • eBay Motors
  • Toyota
  • Nubank
  • ByteDance

04 — Process

How a Flutter project runs

Four stages, and you’re testing a real build on your own phone within the first sprints.

  1. 01

    Gather requirements

    We talk to you (and ideally your users), list what the first release must do, and agree what can wait.

  2. 02

    Plan the build

    Screens, data, integrations and a timeline, broken into two-week sprints so you always know what’s next.

  3. 03

    Build in sprints

    Every sprint ends with a build on TestFlight and Google Play internal testing, so you use the app as it grows.

  4. 04

    Test, launch and support

    Automated and real-device testing, both store submissions handled by us, and support once the app is live.

05 — Tech stack

Our Flutter tech stack

The tools we reach for on most Flutter projects, adjusted to what yours needs.

  • 01FrontendFlutter · Dart · Material Design · GetX
  • 02BackendFirebase · Supabase · Node.js
  • 03DatabaseSQLite · PostgreSQL
  • 04TestingFlutter test · Firebase Test Lab
  • 05DevOpsCodemagic · Fastlane · GitHub Actions

Frontend

  • Flutter
  • Dart
  • Material Design
  • GetX

Backend

  • Firebase
  • Supabase
  • Node.js

Database

  • SQLite
  • PostgreSQL

Testing

  • Flutter test
  • Firebase Test Lab

DevOps

  • Codemagic
  • Fastlane
  • GitHub Actions

06 — Industries

We’ve built software for your industry

Generic software rarely fits complex industries. We take time to understand the regulatory environment, user behavior, and operational realities of your space before writing a single line of code.

  • Agriculture
  • Fintech
  • Healthcare
  • Education
  • eCommerce
  • Hospitality
  • Entertainment
  • Government
  • Real Estate
  • Business
  • Logistics
  • Tech & IT
  • Non-Profit
  • Automotive
  • Travel & Tourism

07 — Client voice

Working with Zentury has been a game-changer for our business. Their AI solutions have revolutionized our operations, enabling us to automate repetitive tasks and make data-driven decisions with ease. We couldn’t be happier with the results.

John AndersonCEO of Oklahoma Medical Care

Partnering with Zentury has transformed our business. Their AI solutions have streamlined our operations by automating routine tasks and empowering us to make smarter, data-driven decisions. The results have exceeded our expectations.

Brandon PearsonBig Canyon Inc.

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FAQ

Flutter questions

01Is Flutter good for production apps?

Yes. Google Pay, BMW’s owner app and eBay Motors all run on Flutter. It is stable, well supported and suited to apps with millions of users.

02Flutter or React Native: which should I choose?

Both are good. Flutter suits apps with a strong custom design and a single look everywhere; React Native suits teams that already work in JavaScript and want platform-native components. We build both and will recommend one for your case.

03How much does a Flutter app cost?

It depends on the number of screens, the back-end and the integrations. Because one codebase covers iOS and Android, it usually costs well under two native apps. You get a fixed estimate after a short discovery call.

04Can Flutter apps use the camera, GPS and payments?

Yes. Plugins cover the camera, location, notifications, biometrics and in-app payments. When something isn’t covered, we write the native iOS or Android code and connect it to Flutter.

05Can you take over an existing Flutter app?

Yes. We start with a short code review, fix what’s urgent, and then carry on with new features or maintenance.

09 — Get in touch

Let’s build

Let’s Build Something That Works

Have an idea you’re ready to move on? A problem your current technology isn’t solving? Our team is based in Austin, Texas, and works with businesses all over the world. Reach out — the first conversation is free, and you’ll leave with clarity, not a sales pitch.

Email us
Studio
5900 Balcones Drive STE 100, Austin, Texas 78731

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