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Tech42 Software Solutions GmbH
Mobile app development — Tech42 Software Solutions Hamburg

Service

Mobile app development

Mobile app development for iOS and Android — native and cross-platform, fast to market, no compromise on UX.

Mobile app development means more than a shrunken website. A good app needs to be fast, feel native, handle offline scenarios, and survive store reviews. We pick the technology based on your needs — not on fashion — and ship apps users want to keep.

What you get

Concrete, not abstract.

Native iOS & Android

Swift and Kotlin when maximum performance, deep integration, and best UX matter. We know the specifics of both platforms in detail.

Cross-platform with React Native & Flutter

One codebase, both platforms. The right choice when time-to-market and maintainability outweigh platform-specific detail.

Backend integration

APIs, push notifications, offline sync, auth. We build the backend with it — or integrate into yours.

App store deployment

We handle App Store Connect, Play Console, code signing, review processes, and release pipelines.

Performance & UX

60fps animations, sensible loading strategies, considered empty states, accessibility. An app that feels good.

Accessibility and security

WCAG-compliant accessibility, secure on-device storage, clean auth flows. Mobile apps that hold up in the enterprise context.

What we work with

Technologies.

We pick the technology based on your needs — these are our daily tools.

  • Swift / SwiftUI
  • Kotlin / Jetpack Compose
  • React Native
  • Flutter
  • Firebase

Frequently asked

Common questions about this service.

  • How does a mobile app project with Tech42 start?

    Discovery phase with concept, UX sketches, and technical feasibility (typically two to three weeks), then sprint-based delivery with a clickable prototype in weeks 4–6 and a production MVP in three to six months. We bring in real beta testers early.

  • Native iOS/Android or cross-platform (React Native, Flutter)?

    Depends on the need. Cross-platform saves 30–40 % of effort with good performance for standard apps; native pays off for AR/VR, intensive hardware use, or premium UX. We give an honest recommendation in Discovery — even when cross-platform would be cheaper for our scope.

  • Do you also take over existing apps?

    Yes. We analyse your codebase, identify improvement potential (performance, stability, UX), and extend with new features. Pure maintenance without new features is also fine.

  • Who handles app-store deployment and reviews?

    We do. App Store Connect, Google Play Console, code signing, store-review responses, and release pipelines are part of the standard scope. You don't need to build up app-store expertise.

  • How long does app-store approval take?

    Apple review typically 24–72 hours on a clean build, Google noticeably faster. We know the most common reject reasons and avoid them up front — that's experience, not magic.

Let's talk about your project.

No-obligation first call. We listen, give you an honest take, and suggest the next move.