Scope and contact
This policy covers the Vocab Battle app and website operated by KyLan Studio. Send privacy questions or data requests to contact@kylanstudio.com.
Information handled by the app
The app uses an account identifier, including for guest accounts. When you link Google or Apple, the authentication service may process the email and profile details you permit it to share. Your game profile may include a display name, selected avatar, country, level, XP, match results, learning path and review history.
Why information is used
Information supports sign-in, progress sync, matchmaking, rankings, reviews and support. Firebase Analytics may process device details, app version and usage events to understand performance and improve the experience. Purchase status determines access to Pro benefits.
Third-party services
The app integrates Google Firebase for authentication and analytics, RevenueCat for subscription entitlements, and the App Store or Google Play for payments. These services process data under their policies and may process it in other countries. Display names, avatars, countries and achievements may be visible to other players in community features. Never send card numbers or passwords to support.
Storage and account deletion
Progress is stored on your device and may sync to the server. In the app, open Settings → Account → Delete account and confirm. Successful deletion removes the account and active gameplay data; backups may remain until rotated out. Stores or providers may retain transaction records under their obligations. Uninstalling does not delete server data; deleting an account does not cancel a subscription.
Your data requests
Contact us to request access, correction, export or deletion, or to ask about processing. Applicable rights depend on the law where you live. We may need to verify account ownership before handling a request. You can request deletion by support email even if you cannot access the app.
Children and security
If you are not old enough to consent independently under local law, ask a parent or guardian to review use and purchases. Guardians may contact us about a child's data. Do not share passwords, sign-in codes or sensitive information in a display name or support screenshot. No transmission or storage system can guarantee absolute security.
Website and updates
The web demo holds answers only in page memory; it does not save account scores. The website currently has no advertising or app analytics integration and no email collection form. Hosting infrastructure may process IP addresses and technical logs to serve and protect the site. If you email us, the message is used to assist with your request. Policy changes appear here with an updated date.