1. Offline app, no account, no network
TrainerFish is a fully offline chess training app. It does not require you to create an account or sign in, and it does not communicate with any server.
The app does not:
Collect or transmit personal data
Use analytics or crash-reporting services
Display advertising
Use the advertising ID
All features work entirely on your device.
2. Data stored on your device
TrainerFish stores some information locally on your device to run its features, such as:
Puzzle training progress and cycle statistics
Endgame trainer progress
Opening Tree files
Clock settings (time controls, Do Not Disturb preference)
App preferences (sound effects, themes, etc.)
This data is stored only in the app’s local storage and is not sent to any server by the app.
If you uninstall TrainerFish, this local data is removed by the operating system.
3. Permissions
TrainerFish uses the following Android permission:
ACCESS_NOTIFICATION_POLICY – This is used only so that the optional “Do Not Disturb” feature of the chess clock can mute notifications while you are playing.
The app does not read the content of your notifications.
You can choose whether or not to grant this permission in system settings.
The app does not request access to contacts, location, camera, microphone, storage, or any other sensitive permission.
4. Backups and data transfer
TrainerFish is configured so that its data is not included in cloud backup or automatic device-to-device transfer where supported by the operating system. Your training data remains on your device only.
5. Children’s privacy
TrainerFish does not target children specifically and does not collect personal information from users of any age. Because no data is transmitted to any server, there is no profile, tracking, or online behavior collection.
6. Third-party services
TrainerFish does not embed third-party SDKs for advertising, analytics, or social media. The app itself does not open network connections.
If you leave the app (for example, by manually opening a web browser or another chess site), your use of those external services is governed by their own privacy policies.
7. Changes to this policy
If this privacy policy is updated, the new version will be published on this page. The “Last updated” date at the top will be changed accordingly.
8. Contact
If you have any questions about this privacy policy or about TrainerFish, you may contact:
Ton Orbe
Email: anthony.orbe@gmail.com