Terms of Service

May 29, 2026

1. Acceptance of Terms

By downloading, installing, or using Mad Sudoku (“the App”), you agree to be bound by these Terms of Service (“Terms”). If you do not agree to these Terms, do not use the App.

2. Description of Service

Mad Sudoku is a mobile puzzle game that provides KenKen / Killer Sudoku gameplay. The App is available on iOS and Android devices and is published by Abdelrahman Barakat (“we”, “us”, “our”).

3. Use of the App

You may use the App for personal, non-commercial purposes. You agree not to:

  • Reverse engineer, decompile, or disassemble the App
  • Modify, adapt, or create derivative works based on the App
  • Remove or alter any proprietary notices or labels on the App
  • Use the App for any unlawful purpose
  • Attempt to interfere with or disrupt the App’s functionality
  • Use automated systems or software to extract data from the App
  • Attempt to bypass, manipulate, or fraudulently obtain the Mad Sudoku Pro entitlement or any other paid feature

4. Advertising

The App displays advertisements served through Google AdMob, which mediates demand from third-party ad networks. The networks currently mediated include Google AdMob, Meta Audience Network, and Unity Ads. By using the App, you acknowledge that:

  • Ads may be displayed during gameplay (interstitial ads between games, rewarded video ads for hints and extra undos)
  • Ad content is provided by third parties and is not controlled by the developer
  • Whether ads are personalized depends on the consent choice you make in the in-app consent prompt (where applicable) and on your device’s App Tracking Transparency setting on iOS
  • You may interact with ads at your own discretion and risk

5. Subscriptions and In-App Purchases

The App offers an optional Mad Sudoku Pro subscription, available as a monthly, yearly, or lifetime purchase. The subscription removes ads and unlocks additional Pro features.

  • All purchases are processed by the Apple App Store (on iOS) or Google Play (on Android) and are subject to their respective terms, billing rules, and refund policies.
  • Subscription status is managed across stores via RevenueCat.
  • Auto-renewing subscriptions renew at the end of each billing period at the then-current price unless cancelled at least 24 hours before the end of the period through the App Store or Google Play account settings.
  • You can review, change, or cancel an active subscription at any time from Settings → Mad Sudoku Pro in the App, which opens the platform-native subscription management UI (StoreKit on iOS, Google Play subscription center on Android).
  • A lifetime purchase is a one-time, non-renewing purchase tied to the App Store or Google Play account that made it.
  • Purchases are personal, non-transferable, and bound to the store account used at the time of purchase.
  • We do not issue refunds directly; refund requests must be submitted to Apple or Google through their respective support channels.

6. User Data and Privacy

Your use of the App is also governed by our Privacy Policy. In summary:

  • No personally identifiable information is collected by us.
  • We do not use Firebase Analytics, Firebase Crashlytics, or any other first-party analytics or crash-reporting SDK.
  • Limited technical data may be collected by mediated ad networks and by RevenueCat (for subscription management), as described in the Privacy Policy.

7. Game Center / Google Play Games (optional)

If you opt in to sign in to Game Center (iOS) or Google Play Games (Android), the App may submit your scores to the corresponding leaderboards. This feature is optional and can be declined or signed out of at any time.

8. Availability and Updates

  • The App is provided “as available” and may be updated, modified, or discontinued at any time without notice.
  • We are not obligated to provide support, maintenance, updates, or upgrades.
  • Game progress is stored locally on your device and may be lost if you uninstall the App or clear its data.

9. Disclaimer of Warranties

THE APP IS PROVIDED “AS IS” AND “AS AVAILABLE” WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. WE DO NOT WARRANT THAT THE APP WILL BE UNINTERRUPTED, ERROR-FREE, OR FREE OF HARMFUL COMPONENTS.

10. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THE DEVELOPER SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR ANY LOSS OF PROFITS OR REVENUES, WHETHER INCURRED DIRECTLY OR INDIRECTLY, OR ANY LOSS OF DATA, USE, GOODWILL, OR OTHER INTANGIBLE LOSSES RESULTING FROM YOUR USE OF THE APP, INCLUDING ANY LOSS OR INTERRUPTION OF ADVERTISING REVENUE OR SUBSCRIPTION ENTITLEMENTS.

11. Third-Party Services

The App relies on the following third-party services. Your use of these services is subject to their respective terms and privacy policies:

  • Google AdMob and the mediated ad networks Meta Audience Network and Unity Ads (advertising)
  • RevenueCat (subscription management)
  • Apple App Store / Google Play (billing and app distribution)
  • Apple Game Center / Google Play Games (optional leaderboards)

12. Children’s Use

The App is rated for general audiences (4+ on the App Store, Everyone on Google Play). The App does not knowingly collect personal information from children. Ads displayed through mediation are configured with a maximum content rating of PG and request that networks treat the audience as under the age of consent.

13. Termination

We reserve the right to restrict or terminate your access to the App at any time, for any reason, without notice or liability. Termination does not entitle you to a refund of any unused portion of a subscription; refunds remain governed by the Apple App Store or Google Play terms.

14. Changes to These Terms

We may update these Terms from time to time. The updated version will be indicated by the date at the top. Your continued use of the App after changes constitutes acceptance of the revised Terms.

15. Governing Law

These Terms shall be governed by and construed in accordance with applicable law, without regard to conflict of law principles.

16. Contact

If you have questions about these Terms, please contact us at: [email protected]