Privacy Policy
Effective: September 27, 2026
This policy describes how the iOS app and web version of "Puzzle of Hanoi" (the "App") handle information about users.
1. Information the developer collects
The developer does not collect personal information such as your name, email address, or location. The App has no account registration.
Your high score is stored only on your device (or in your browser for the web version) and is never sent to the developer's servers.
2. Advertising (iOS app)
The iOS app uses Google AdMob, an advertising service provided by Google LLC, to show ads when the game is over. AdMob may collect and use the following information to deliver and measure ads and to prevent fraud:
- The advertising identifier (IDFA), only if you allow tracking
- Device information such as IP address, device model, OS version, and language
- Records of interactions with ads, such as views and taps
- Diagnostic information such as crashes
You can choose whether to allow tracking on the prompt shown at first launch, and change it later in iOS Settings → Privacy & Security → Tracking. If you do not allow tracking, you can still use the App and will see non-personalized ads.
Users in the European Economic Area, the UK, and other regions are asked for consent through Google's User Messaging Platform.
For how Google handles information, see How Google uses information from sites or apps that use our services and the Google Privacy Policy.
3. Web version
The web version has no ads and uses no analytics tools.
4. Children
The App is not directed primarily at children under 13.
5. Changes to this policy
This policy may be updated as needed. Any changes will be posted on this page.
6. Contact
For questions about this policy, please contact
info@yokoyamakikaku.work