Notes Tech
Radical privacy
• No INTERNET permission — verifiable with aapt dump permissions app.apk
• No account, no telemetry, no tracker, no advertising
• SQLCipher AES-256 database, key sealed by the Android Keystore
• Multi-step panic mode: wipes keys, database and dictation model in seconds
• Optional app lock: a PIN, plus strong biometrics if you wish
Per-folder vaults
• Argon2id passphrase (m=64MB, t=3) or Keystore-bound PIN (Android 9+)
• AES-256-GCM per note, bound to its note (anti-swap)
• PIN auto-wipe after 5 failures
• Configurable auto-lock (5 min to never)
On-device voice dictation
• whisper.cpp built into the app; Whisper model imported manually
• SHA-256 verified at import and before loading
• Recordings deleted after transcription
Editing
• Notes open to be read (Markdown: headings, lists, links); “Edit” to write, autosave
• Long press on a note: edit, move to trash with Undo, or delete permanently
• A pastel colour per note in the lists (a vault note's only while its vault is open)
• [[Title]] backlinks with autocomplete + "notes linking here" panel
• Instant FTS5 search, configurable sort
• Markdown export, one note or a ZIP (YAML frontmatter, Obsidian/Logseq compatible)
Five languages
• English, French, German, Italian, Spanish — chosen in Settings
• Light / dark / system theme
• Privacy policy and terms in the five languages
Permissions
• Microphone: dictation only, asked when you turn it on
• Biometrics: app lock only, gives access to no data
Open source Apache 2.0
Full and verifiable source code on GitHub: gitubpatrice/notes_tech
For thinkers, therapists, students, researchers, writers and journalists who want to take sensitive or dense notes without them ever leaving their phone.
- Author: Patrice Haltaya
- License: Apache License 2.0
- Website
- Issue Tracker
- Source Code
- Changelog
- Build Metadata
- Reproducibility Status
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Versions
Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.
Download F-Droid-
x86_64This version requires Android 7.0 or newer.
It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.
Download APK 7 MiB PGP Signature | Build Log
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arm64-v8aThis version requires Android 7.0 or newer.
It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.
Download APK 6.8 MiB PGP Signature | Build Log
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armeabi-v7aThis version requires Android 7.0 or newer.
It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.
Download APK 5.2 MiB PGP Signature | Build Log
-
x86_64This version requires Android 7.0 or newer.
It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.
Download APK 8.3 MiB PGP Signature | Build Log
-
arm64-v8aThis version requires Android 7.0 or newer.
It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.
Download APK 8.0 MiB PGP Signature | Build Log
-
armeabi-v7aThis version requires Android 7.0 or newer.
It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.
Download APK 6.4 MiB PGP Signature | Build Log
-
x86_64This version requires Android 7.0 or newer.
It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.
Download APK 30 MiB PGP Signature | Build Log
-
arm64-v8aThis version requires Android 7.0 or newer.
It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.
Download APK 28 MiB PGP Signature | Build Log
-
armeabi-v7aThis version requires Android 7.0 or newer.
It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.
Download APK 24 MiB PGP Signature | Build Log
On an English phone, everything is in English. The default folder, created as "Boîte de réception" on every install, now shows as "Inbox"; a renamed folder keeps its name. Voice models, errors and the export README are translated. A failed PIN vault now says why, and messages no longer hide behind the folder list.