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Kotlin · React Native · Play Store
Android apps your users keep using.
We design and develop Android apps that feel at home on every device: smooth, battery-friendly and ready for the Google Play Store.
- Android apps shipped
- 6+
- Apps live on Google Play
- 4+
- Crash-free sessions we aim for
- 99%
- Weekly test builds during development
- 2
What's included
What you get.
Android runs on thousands of different devices. We build apps that look right and perform well on all of them, using Kotlin for fully native experiences or React Native when you want one codebase for Android and iOS.
Native Android apps
Kotlin and Jetpack Compose apps with full access to device features.
Cross-platform apps
React Native apps that share one codebase with your iOS version.
Back-end & APIs
Secure APIs, push notifications, payments and offline sync.
Play Store launch
Store listing, review guidelines, release tracks and crash monitoring.
Our process
How we do it.
- 01
Plan
We map user journeys, pick native or cross-platform, and define the first release.
- 02
Design
Material-friendly UI designed for real screen sizes, tested as a clickable prototype.
- 03
Build & test
Weekly builds you can install on your own phone, tested across popular devices.
- 04
Release & support
We publish to Google Play, monitor stability and ship updates.
Tech stack
Tools we trust.
- Kotlin
- Jetpack Compose
- React Native
- TypeScript
- Firebase
- Node.js
Why 3techy
A partner, not a vendor.
Full-stack team. Design, front-end, back-end and mobile under one roof, with no hand-offs between agencies.
Built to scale. Clean architecture that grows with your users instead of slowing them down.
Modern technology. Proven frameworks and tools that keep your product fast and easy to maintain.
Support after launch. Updates, fixes and new features long after the first release.