App Development

Apps that delight.

Cross-platform apps with Flutter and React Native — built once, native on iOS and Android. Fast, modern, scalable.

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What we deliver

Apps that perform.

From idea to the App Store — all from one team, with real craftsmanship.

iOS & Android from one codebase

With Flutter and React Native we build once and deploy to both platforms. No double work — full native performance on iOS and Android.

Native Performance

Flutter compiles directly to native ARM code. React Native uses native components. The result: smooth 60fps animations and fast load times.

Secure & Maintainable

Clean architecture, type-safe code, a CI/CD pipeline from the start. Your app stays maintainable and secure over the long term — even as the team grows.

Scalable Backend Integration

REST API, GraphQL, Firebase, Supabase — we integrate your app with the right backend and make sure it holds up even at 100,000 users.

Offline-Ready

Local cache, sync on connection, optimistic updates — your app works even without a stable internet connection. Essential for field service and logistics.

App Store Publishing

We handle the entire submission process for the Apple App Store and Google Play Store — including screenshots, descriptions, and a compliance check.

Technologies

Flutter or React Native?

Both technologies are first-class — we recommend the right one for your project.

Flutter

Google · Dart

Pixel-perfect UI on both platforms
Very high performance (compiles to native code)
Consistent design with no platform discrepancies
Excellent for complex animations
Usable for web & desktop too

Ideal for: greenfield projects, complex UI, consistent branding, games, fintech apps.

React Native

Meta · JavaScript / TypeScript

Real native components (iOS & Android look)
Large ecosystem, many ready-made libraries
Easier entry for web developers
Live Reload & Fast Refresh
Expo for a quick start

Ideal for: teams with JS experience, brownfield integration, social media apps, B2B tools, fast MVPs.

Our Process

From idea to the App Store.

Structured, transparent, and with no nasty surprises.

We guide you from the first conversation to launch — and beyond. Every phase is clearly defined, documented, and easy for you to follow.

01 — Analysis

Requirements Analysis

We analyze your audience, use cases, and technical requirements. From that we produce a scope document and a clear technology recommendation.

User Stories Tech Choice Scope Doc

02 — Design

UI/UX & Prototyping

Figma designs for every screen, a clickable prototype for user testing. Development only begins once you're excited about it.

Figma Prototype User Testing

03 — Development

Development & Testing

Agile development in sprints. You see the progress after every sprint. Unit tests, integration tests, and manual QA are part of the process.

Agile CI/CD QA

04 — Launch

Store Submission & Support

We handle the complete app store submission and guide you through the review process. After launch, we're available for bug fixes and updates.

App Store Google Play Post-Launch

FAQ

Frequently Asked Questions

What does it cost to develop an app at Jafinity?

The cost of app development depends entirely on the scope and requirements — for example, the number of features, the integrations you want, and whether you're serving iOS, Android, or both platforms. After a free initial consultation, we analyze your project and put together a transparent, custom fixed-price quote with no hidden line items. That way you pay for exactly what your app really needs.

How long does app development take from idea to launch?

That depends heavily on the project: a lean prototype can be ready in a few weeks, while an extensive app with complex integrations and both platforms takes several months. The deciding factors are feature scope, design depth, and the review rounds with you. In the initial consultation we give you a realistic estimate tailored to your project.

How does working together on an app development project go?

We guide you from the first idea through concept and prototype to publishing in the app stores and ongoing support. In clearly defined phases we develop the UX, frontend, and the necessary integrations to the backend, always with regular feedback loops. That way you keep a clear view at all times and actively shape your app.

Is custom app development worth it instead of a ready-made builder?

A builder quickly puts limits on features, design, and performance — especially when your app needs its own integrations or particular workflows. At Jafinity we develop your app custom and with personal support, tailored precisely to your brand and your users. The result is a scalable, standalone solution rather than an off-the-shelf template.

Does Jafinity also offer maintenance and support for the app after launch?

Yes — our work doesn't end when the app goes live in the store. On request, we take care of updates, adaptations to new operating system versions, and the ongoing upkeep of integrations, so your app runs reliably and securely over the long term. We'll work out the right scope with you individually.

Ready to get started?

Your project deserves
more than average.

Let's build something together that truly makes an impact.
No templates. No compromises.

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Free initial consultation · Fast response · Germany