Mathrid: Number Crossword

Privacy Policy & Terms of Service

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.

1. Terms of Service

By downloading or using Mathrid ("the app"), you agree to these terms. If you do not agree, please do not use the app.

  • License: We grant you a personal, non-transferable, non-exclusive license to use the app for your own entertainment. You may not copy, resell, or reverse-engineer the app or its puzzle content.
  • Offline Gameplay: Mathrid turns simple arithmetic into an addictive logic puzzle. The core gameplay does not require an internet connection. 100% offline — no account, no Wi-Fi needed, no clutter.
  • Disclaimer: The app is provided "as is" without warranties of any kind. We are not liable for any damages arising from your use of the app to the extent permitted by law.
  • Changes: We may update these terms from time to time. Continued use of the app after changes means you accept the updated terms.

2. Data We Store on Your Device

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.

3. Advertising

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.

4. Subscriptions & Payments

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:

  • Monthly auto-renewable subscription;
  • Yearly auto-renewable subscription, which may include a 7-day free trial for new subscribers;
  • Lifetime one-time purchase (not a subscription).

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.

5. Children's Privacy

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.

6. Contact Us

If you have any questions about these Terms, our Privacy Policy, or need help with the app, contact us at sultonuzdev@gmail.com.