Cipher Notes

Cipher Notes is an Android app for encrypted notes and checklists, designed to keep data on the device rather than in accounts or cloud storage. It encrypts notes with AES-256-GCM through Android Keystore and works offline; the app has no internet permission or telemetry hooks. Users can share text from browsers and other apps into Cipher Notes, and customize its dynamic themes or choose dark and light modes. Because notes remain local, there is no built-in cloud sync. The project suggests Syncthing or Nextcloud for people who want to sync files themselves. A lost password prevents a note from being decrypted, so users should retain their passwords. Cipher Notes is MIT licensed, and its source code is publicly auditable. The app is free and open-source; the listed Free plan costs nothing. For support, the maker points users to GitHub issues and provides [email protected] as a contact. Android is the only listed platform.

Cipher Notes keeps notes local and encrypted, with offline use and no accounts. Users should keep passwords safe and arrange any file syncing themselves.

Cipher Notes suits Android users who want encrypted notes stored locally and can manage their own passwords. It may also suit people who prefer offline operation and a publicly auditable, MIT-licensed app.