CypherLeaf

CypherLeaf is a clean, private note-taking app for Android. It works fully offline, has no ads, no trackers, and no account. Your notes stay on your device. Features: * Notes with folders and tags to keep things organised * Pin important notes to the top * Trash with restore, so a delete is never final by accident * App lock using your device biometric or screen lock * Protected notes: individual notes and their attachments are encrypted with AES-GCM, and the key is held in the Android Keystore, separate from the notes database * Attachments on notes * Reminders with notifications * A home-screen widget for recent and pinned notes * Export notes as plain text, Markdown, or JSON * Encrypted portable backup protected by a passphrase (PBKDF2 + AES-GCM), so you can move your notes to a new device safely * Light and dark themes, with an adjustable font size Privacy: CypherLeaf requests no internet permission in its release build, so it cannot send your notes anywhere. Fonts are bundled with the app rather than downloaded. Protected notes and encrypted backups never leave the device in readable form. Only notes you mark as protected are encrypted. Other notes are kept in the app's private storage, which other apps cannot read, but they are not encrypted by CypherLeaf. Android's own cloud backup and phone-to-phone transfer are switched off, so nothing is copied off the device unless you export it; use the encrypted backup to move to a new phone.

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