Last updated: July 13, 2026
Mathrid is a minimalist number-puzzle game built for relaxation and brain training. We designed it to be 100% offline and collect as little data as possible.
By downloading or using Mathrid ("the app"), you agree to these terms. If you do not agree, please do not use the app.
Your game progress, puzzle statistics, daily streaks, and settings are saved locally on your device only. We do not upload your gameplay data to any remote server, and it is not tied to any user account.
For users on the free version, Mathrid displays ads provided by Google AdMob. To serve and measure these ads, AdMob may collect and use certain device identifiers and usage data, as described in Google's Privacy Policy.
On iOS (App Tracking Transparency): on Apple devices, the app asks for your permission before using the device's advertising identifier, via Apple's App Tracking Transparency prompt. If you decline, you will still see ads, but they will not be personalized using that identifier.
Purchasing a premium subscription completely removes all ads and stops any ad-related data collection by AdMob within the app.
In-app purchases and subscriptions are handled by the platform's native store (Apple App Store or Google Play) and routed through our payments provider (RevenueCat). We only receive an anonymous subscription status to unlock your premium features. We never receive or store your full payment details.
Mathrid Premium (no ads, unlimited hints, all levels unlocked, Daily Challenge archive, and color themes) is offered as:
Auto-renewal terms (Apple App Store): payment is charged to your Apple Account at confirmation of purchase. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours prior to the end of the current period. You can manage or cancel your subscription anytime in your App Store account settings (Settings → your name → Subscriptions). Any unused portion of a free trial is forfeited when you purchase a subscription.
Google Play: subscriptions renew automatically unless cancelled in the Google Play Store (Play Store → profile → Payments & subscriptions) before the renewal date. Prices are shown in the app and in your local currency before you confirm any purchase.
Mathrid is a great educational tool for kids to sharpen mental math. The app itself does not knowingly collect personal information from children. If the app is used primarily by children, we strongly recommend purchasing a subscription to disable third-party advertisements.
If you have any questions about these Terms, our Privacy Policy, or need help with the app, contact us at sultonuzdev@gmail.com.