Android apps that feel at home on every phone.
Kotlin and Flutter apps, tested on real devices and published to Google Play by our Karachi team.
Android runs on thousands of different devices. We design and test for the ones your customers actually use, not just the newest flagship.
We build native apps in Kotlin with Jetpack Compose when performance and platform features matter, and in Flutter when you want Android and iOS from one codebase. Either way you get clean architecture, automated tests and a Play Store listing ready to go.
- Typical first release
- 10 to 16 weeks
- Team
- Project lead, designer, 2 engineers, QA
- Languages
- Kotlin, Dart (Flutter)
- Engagement
- Fixed quote or monthly retainer
What we build.
Native Kotlin apps
Jetpack Compose interfaces, Material 3 components and full access to device hardware.
Cross-platform with Flutter
One codebase for Android and iOS when budget and timeline matter more than platform-specific polish.
Backends and APIs
Firebase, Node.js or Laravel backends with authentication, payments and push notifications.
Performance tuning
Faster start-up, smaller downloads and smooth scrolling on low and mid-range phones.
Security and privacy
Encrypted storage, secure API calls and Play Store data-safety forms filled in correctly.
Maintenance and updates
Android version updates, crash monitoring and new features on a monthly plan.
From idea to Google Play.
Weekly builds, written sign-off at every stage and one project lead throughout.
Device and audience check
We look at who will use the app and which phones they carry, then set the minimum Android version and test matrix.
Prototype on a real phone
A clickable prototype installed on your own device, so you judge the flow in your hand.
Sprints with weekly builds
Every week you get a new build through Firebase App Distribution or a Play testing track.
Store launch and monitoring
Listing, screenshots, staged rollout and crash tracking with Crashlytics from day one.
Tools we use
- Kotlin
- Jetpack Compose
- Flutter
- Firebase
- Room
- Retrofit
- Google Play Console
- Crashlytics
“Our riders use cheap phones on patchy networks. Radar built the app for exactly that, and support tickets dropped in the first month.”
Android app development questions.
Anything else, ask us directly. We answer on the phone, on WhatsApp or by email.
Native Kotlin or Flutter: which should we choose?
Choose Kotlin if Android is your main platform or you need deep hardware access. Choose Flutter if you need Android and iOS together on a tighter budget. We explain the trade-offs for your case before you commit.
Will the app work on older Android phones?
Yes. We agree a minimum Android version at the start, usually covering well over 90 percent of active devices in your market, and test on low-end phones as well as flagships.
Do you publish the app to Google Play for us?
Yes. We prepare the listing, screenshots, privacy details and data-safety form, and publish under your own developer account.
What happens after launch?
We monitor crashes and reviews closely for the first weeks, then move to a monthly support plan if you want one.
Often combined with.
Tell us what you are building.
Share a few lines about the idea, your timeline and a rough budget. A project lead reads every enquiry and replies within one working day.
Thanks, your message was sent. We reply within one working day.
We could not send your message. Please check the fields and try again, or email hasnain@radarappdev.com.