I build small, useful Android apps.
Indie developer behind a growing fleet of small, useful Android apps — calculators, planners and on-the-go utilities. Every app is built in Kotlin with Material 3, ships 100% offline where it can, and respects your attention with a clean ad layout.
The studio
Mobile Apps Lab is the umbrella for everything I publish on the Play Store. The mission is simple: ship one focused tool at a time, keep it offline-first, and never sneak in a subscription.
How each app gets made
- Trend research — what real people are searching for in 2026
- Native Kotlin build (Material 3, Android 8+ compatible)
- AdMob banner + interstitial — never on the result screen
- Signed release keystore, Play Console submission, Data Safety filed
- YouTube Short demo on @MobileAppsLab
Why offline-first?
Most calculators and trackers don't need a server. Asking for an account is friction; asking for the network is worse. Every app on this site does the math on-device. Your data stays on your phone, even if Mobile Apps Lab disappears tomorrow.
Get in touch
Bug report, feature idea, partnership — write to sidkfree@gmail.com. I read every email.