New Zealand
Norway
Android scope and architecture
Core flows, navigation, data and integrations defined for Android phones and tablets, with a Kotlin architecture that stays maintainable.
Service · Android App Development
Native Android app development in Kotlin, built for Google Play.
99 Francs builds focused native Android apps in Kotlin — clean architecture, the flows that matter, and Google Play submission support, scoped for a real first release.
shipped projects
150+
raised by clients
$32M+
tasks delivered
9,000+
Direct answer
Android app development is building a native app for Android phones and tablets in Kotlin — designed for the platform, its guidelines and Google Play.
We build when the product benefits from native Android: performance, Material conventions, device features and a clean Google Play presence. We scope the first useful release, build the core flows in Kotlin, and take the app through testing and Play Store submission.
What we build
A native Android app scoped to ship, not to sprawl.
A strong first Android release is focused: the flows users need, built natively in Kotlin, ready for Google Play.
Native Kotlin build
Screens, navigation, state, forms and platform features implemented in Kotlin following Material Design conventions.
Device states and QA
Responsive layouts across the wide range of Android screen sizes and densities, permissions, edge cases and testing on real devices.
Google Play submission
Build configuration, store listing assets, screenshots, policy and review preparation and support getting the app live on Google Play.
Best fit
Use native Android development when the product should feel like a real Android app.
Android is your primary platform
If your users are on Android first, a native Kotlin app gives the best performance and access to platform features.
You need native device features
Notifications, background work, sensors, secure storage and deep platform integrations are cleaner native than cross-platform.
You need to handle device fragmentation
Native Android lets us handle the range of Android screen sizes, densities and OS versions your audience actually uses.
You want Google Play help, not just code
We prepare the build, store assets, policy checks and submission so the app reaches users on Google Play.
Process
From Android scope to a Google Play-ready build.
We keep the build tied to product behavior and Material guidelines, then take it through Play review.
- 01
Scope the Android release
Goal, design maturity, APIs, device features, OS targets and the smallest useful first version.
- 02
Plan the Kotlin architecture
Navigation, state, data flow and the native components and libraries the app needs.
- 03
Build the core flows
Implement the screens, navigation, states, integrations and platform features in Kotlin.
- 04
Test and submit to Google Play
Device QA, store assets, policy and review preparation, and submission support to get the app live.
Related work
Android apps we build, ship and run ourselves.
Our own products in Kotlin and Jetpack Compose: a VPN live on Google Play with its own server fleet, and a world clock with home-screen widgets.
Android App · VPN
SimpleV VPN Android app
A one-tap VPN for Android: no account to start, no traffic logs, WireGuard or Xray Reality to get through networks that block VPNs. A Kotlin and Compose app, an Express and Postgres control plane on Railway and exit nodes on Vultr that start on demand, live on Google Play about two weeks after active work began, plus a Chrome extension that protects the browser on the same accounts.
Mobile App · AI
ClearShot AI camera
An iPhone camera that removes tourists and strangers from travel photos in one tap, or keeps just the person you choose. People are found on the phone with Vision, a cloud model repaints only inside that mask, and a Node and Postgres backend charges only for results. Live on Google Play for Android; the iPhone app is in App Store review.
Mobile App · iOS, Android, Mac, Watch
Timeslide world clock
A world clock where every city is a card: drag one sideways and a single shared time moves across all of them, with the weather for that hour. Built natively for iPhone, Android, Mac and Apple Watch, with widgets, GPU weather shaders and 8 languages. On the App Store and Google Play.
Android app build
Ship a native Android app that feels right on the platform.
Tell us about the app and where the design stands. We will scope the Android build and the path to Google Play.
Android development FAQ
Android app development questions, answered.
Yes. 99 Francs builds native Android apps in Kotlin (with Jetpack Compose or Views as the project needs) for phones and tablets, following Material Design conventions. We focus on lean, product-led first releases.
Yes. We prepare the build, store listing assets and screenshots, help with Google Play policy and review preparation, and support the submission so the app reaches users on the Play Store.
Choose native Android when Android is primary and platform depth matters. Choose Flutter or React Native when one codebase for iOS and Android and faster time-to-market matter more.
Yes. If the UX or UI is not ready, the project should start with mobile app design before development. We can run design and build as one engagement.