Mobile App Development

Cross-platform app with Flutter or React Native

One codebase, two platforms. We build performant apps in Flutter or React Native so you go live faster with lower maintenance, without compromising quality.

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Why cross-platform development?

Flutter and React Native let you build both iOS and Android apps with one team and one codebase. That means lower cost, faster releases and consistent behavior. Syncro has experience with both stacks and advises based on your project: Flutter for UI-heavy apps and maximum performance, React Native if you already have a web/React team. Our mobile app development approach stays agile and transparent.

For maximum platform integration you can choose native development. For quick validation without app stores consider a PWA. Request a free intake for tailored advice.

Capabilities

What we deliver

Flutter development

Dart-based UI with native performance. Hot reload for fast iteration.

React Native

JavaScript/TypeScript, large community and reusable web knowledge.

One codebase

Shared logic and UI; platform-specific code only where needed.

CI/CD & testing

Automated builds for both stores and regression tests.

Why choose us

Benefits

Faster to market

Less duplicate development; features ship on both platforms at once.

Lower TCO

One team, one codebase, less maintenance and bugs.

Proven stacks

Flutter and React Native are used by major brands.

How we work

Process

Stack choice

We choose Flutter or React Native based on team, design and performance needs.

Design & development

Responsive, platform-aware UI and shared business logic.

Build & release

Automated pipelines to App Store and Play Store.

Technology stack

Technologies

Flutter Dart React Native TypeScript Firebase REST API Fastlane Codemagic

Use cases

MVP and startups

Validate quickly with one codebase and limited budget.

B2C apps

Consumer apps where speed and cost matter.

FAQ

Frequently asked questions

A cross-platform MVP starts from around €20,000; more complex apps €35,000–€70,000. Typically 20–40% cheaper than two separate native apps. Request a quote.

Flutter: strong for custom UI and performance. React Native: ideal if you already have React knowledge or want to share web and app. We advise based on your team and goals.

MVP often 2–4 months; more complex apps 4–6 months. Faster than two native apps because much work is done once.

For most apps, yes. Flutter and React Native deliver native-level performance. Only with very heavy graphics or platform-specific features might native be needed.

Yes. We offer maintenance for both platforms from one codebase, including OS updates and new features.

Explore all Mobile App Development solutions

Ready to get started?

Book a free intake and receive a tailored proposal within 48 hours.

Plan Intake No commitment · Free consultation