Privacy Policy

Effective date: November 8, 2026

Apps covered

This policy applies to the Cozy Platypus apps Learning Japanese and Backly, and to this website.

Data stored on your device

Learning Japanese stores study progress, settings, and statistics locally on your device. Backly stores your game library, progress, and settings locally on your device. This data is used to provide app functionality and is not uploaded to Cozy Platypus servers.

Accounts

Neither app requires an account or sign-up.

Advertising

Learning Japanese may display advertisements through Google AdMob. AdMob may collect and use device identifiers, IP address, and usage information according to Google's privacy policy. You can review Google's policy at policies.google.com/privacy.

Downloads and links

Download links may direct you to GitHub Releases or Google Play. Those services have their own privacy policies.

Sharing

Cozy Platypus does not sell personal data. Data is shared only with service providers needed to operate app features, such as advertising or app distribution platforms.

Children

These apps are not directed to children under 13, and Cozy Platypus does not knowingly collect personal information from children.

Data retention and deletion

App data remains on your device until you delete it or uninstall the app. You can reset statistics or app data from within the app settings where available.

Changes

This policy may be updated. Changes will be posted on this page with a revised effective date.

Contact

Questions about this policy can be sent through the Cozy Platypus GitHub profile: github.com/thecosyplatypus.