Privacy policy
Last updated: 30 September 2026
1. Controller and contact
The controller responsible for personal data processed in connection with 1×1 Rennen is:
Tobias HaußRoonstr. 23A
76137 Karlsruhe
Germany
Email: info@tobiashauss.de
Phone: +49 152 36934904
2. Data processed by the app
The app does not require an account. Profiles and learning progress are stored on the device. This includes local profile identifiers, the preset profile names and icons, selected characters, learning status and correct or incorrect counts for multiplication facts, medals, and the number of races, answers and practice minutes. The daily play-time limit and the time played today are also stored locally. The app does not ask for a name, date of birth, contacts, location, photos or account details.
3. Purposes and legal basis
This information is used only to show profiles and learning progress, remember game settings and apply the daily play-time limit chosen by a parent. The app does not create online profiles from it. To the extent this processing concerns personal data, its legal basis is providing the app features you request (Article 6(1)(b) GDPR). Storage on the device that is necessary for these features is based, where applicable, on section 25(2)(2) of the German TDDDG.
4. Storage and deletion
Profiles, settings and statistics are stored only in the app’s local storage on your device. The developer cannot retrieve them from a developer-operated server. They remain there until changed in the app or the app is deleted from the device. Depending on your device settings, iOS may include app data in a device or iCloud backup. What is backed up depends on the backup settings and the provider. Restoring a backup may restore previously saved app data.
5. In-app purchases and Apple
One-time Premium purchases are handled through Apple StoreKit and the App Store. Apple processes the Apple Account, payment and transaction information needed for the purchase under its own privacy terms. Through StoreKit, the app receives a verified transaction or entitlement status to unlock the purchased content. The developer does not receive your payment credentials and does not operate a payment server. Apple may process data outside the EU/EEA under its own terms; see Apple’s privacy information linked at the end of this policy for details about data, retention and safeguards.
6. Read-aloud and permissions
Read-aloud uses audio files bundled with the app or Apple’s AVSpeechSynthesizer. Apple states that speech synthesis is generated on the device and is not sent to a server for processing. 1×1 Rennen does not request microphone access, record voices or create voice recordings.
7. Servers, ads and tracking
The app uses no developer-operated servers, accounts, advertising networks, analytics SDKs or cross-app tracking. Learning profiles and gameplay are not sent to the developer. Apple may separately process data when you use the App Store, your Apple Account, iOS backups or other Apple services; Apple’s own privacy terms apply to those services.
8. External links and email
If you open a link to an external website or email app, your device connects directly to that provider. Technically necessary connection data, such as your IP address, may be sent to that provider. Its privacy information applies to that processing. If you email us, we process the sender details and message you provide to respond to your request. The legal basis is Article 6(1)(b) GDPR for a request about using the app; for other enquiries, it is our legitimate interest in responding (Article 6(1)(f) GDPR). We delete the information when the request is resolved unless statutory retention duties apply.
9. Your privacy rights
Subject to the legal requirements, you may request access to personal data, rectification, erasure, restriction of processing and data portability, and you may object to processing. You may withdraw consent at any time for the future where processing is based on consent. For a request or privacy question, contact Tobias Hauß at info@tobiashauss.de. Because game profiles are stored only on your device, the developer cannot access them remotely; you can view them in the parents’ area. You also have the right to lodge a complaint with a data protection supervisory authority.
10. Children and parents
1×1 Rennen is also designed for children. The app requires no registration and does not collect a child’s identity or age through developer-operated servers. Profiles and learning progress stay on the device. Parents can manage play time and Premium purchases in the parents’ area. Please open external links together with an adult.
11. Security
The app stores data in iOS’s app-protected storage and does not send game profiles to developer-operated servers. No technical system can guarantee absolute security. Protect your device with an up-to-date operating system and a device passcode.
12. Changes to this policy
This policy describes data handling in the current app version. It will be updated if app features or data practices change. Current as of 30 September 2026.
