We respond to every message.

Get in touch

Email is the fastest path to a resolution. Include your Android version and the app version number (visible in the app's About screen).

Data and privacy

Kuroki Studio apps collect no personal data. All app data is stored locally on your device. No analytics, no telemetry, no crash reporting to any external service.

A formal privacy policy is available on each app's Play Store listing.

Refunds

Google Play handles refund requests directly. Within 48 hours of purchase, use the Play Store app or Google's refund request page . After 48 hours, contact support and we'll evaluate case by case.

Common questions

Do apps work without internet?

For almost everything, yes. The utility apps run fully offline; their only network use is verifying a purchase. The one exception is online multiplayer in the game Barrage, which needs a connection. Barrage against the AI, and every other app, works offline.

Will my data transfer between devices?

Data is stored locally. To move it, use your device's backup (Google One backup) or any manual method the app supports.

Is there a subscription option?

The utility apps are one-time purchase only, with no subscription. We add a subscription only where it pays for genuine ongoing value (a live service with real running costs), never just to generate recurring revenue. The one example today is the game Barrage: it has an optional subscription for seasonal extras, but it never gates a core feature, and online play is included in the one-time unlock.