Privacy & data
How Goukaku Drive handles your data, written to meet Japan's Act on the Protection of Personal Information (APPI). We collect the minimum needed to run the practice tool — and personalised ads and analytics never run until you accept them.
Where your data lives
Your scores and account data are stored with Supabase in the Tokyo region (ap-northeast-1), kept in Japan for APPI residency.
Your choices
EEA/UK/Swiss visitors manage ads and analytics consent through the Cookiebot banner. On iOS, an App Tracking Transparency prompt appears before any ad personalisation, and AdMob respects your answer.
Who processes your data
- Google Sign-InWeb & app
Optional account sign-in. Your email and basic profile are shared with Google to authenticate you.
- SupabaseWeb & app
Stores your scores and account, hosted in the Tokyo region (ap-northeast-1).
- CookiebotWeb
Manages your cookie and ads/analytics consent on the web.
- Google AdSenseWeb
Serves web ads. Cookies are used for personalisation only after you consent.
- Google Analytics 4Web
Measures usage to improve the app. Runs only after you consent to analytics.
- PostHogWeb & app
Product analytics to improve the app. Runs only after you consent to analytics.
- Google AdMobiOS app
Serves ads in the iOS app. Personalisation only after the ATT prompt is allowed.