OTTO MATH · PRIVACY
Your privacy.
Simple principles.
Otto Math is an app by Krzysztof Guz. It requires no account and contains no ads or third-party analytics tracking a child’s behavior.
Progress stays on your device
Book progress, the current route and app settings are saved locally. The app does not send them to our server. Deleting the app removes its local data. Purchased access can be restored using the relevant Apple Account; restoring purchases does not recover deleted progress.
The camera is only for AR play
Camera access is optional and used to place a virtual road in your surroundings. The app does not record or transmit images of your room. Screen-based play remains available without camera permission. You can change permission in iOS settings.
Apple handles purchases
Payments and subscriptions are handled by the App Store. The app reads purchase entitlement information to unlock Otto Plus. We do not receive payment card details. Purchase options are behind a parental gate.
Apple’s data practices are described in Apple’s privacy policy.
Contacting support
If you email us, we receive your email address and the information in your message. We use them to handle your request. Please do not send a child’s name, photos or other personal data — a description, device model and system version are usually enough.
This website
This site does not use analytics cookies, advertising cookies or tracking tools. No login is required. Images and styles are served from the same site. The hosting provider, Firebase Hosting (Google), may process technical connection information, including IP addresses, to deliver the site and keep the service secure.
Information about Google services is available in Google’s privacy policy.
Privacy questions
Contact: Krzysztof Guz, krzysztof.guz@me.com. You can write about data shared in correspondence, including requests to access, correct or delete it.
We save your chosen site language locally in your browser (localStorage) to remember your preference. You can remove it by clearing site data. It is not used for tracking.