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Notes Tech

Encrypted Markdown notes, 100% local. No Internet permission.
New in version 2.0.9
Notes have a Preview: switch between Edit and Preview to see headings, lists, emphasis and links rendered. A [[Title]] link opens the note it points to.

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.
Notes Tech: 100% local Markdown note-taking, encrypted at-rest.

Radical privacy
• INTERNET permission explicitly removed via manifest merger (tools:node="remove" on android.permission.INTERNET and ACCESS_NETWORK_STATE) — verifiable post-merge with aapt dump permissions app.apk
• No account, no telemetry, no tracker, no advertising
• SQLCipher AES-256 database + Android Keystore-sealed key (hardware-backed)
• Multi-step panic mode: wipes key + DB + dictation model in seconds

Per-folder vaults
• Argon2id RFC 9106 passphrase (m=64MB, t=3) or Keystore-bound PIN
• AES-256-GCM per note with AAD = note_id (anti-swap)
• PIN auto-wipe after 5 failures (device-bound Keystore)
• Configurable auto-lock (5 min to never)

On-device voice dictation
• Local Whisper (.bin model imported manually)
• SHA-256 verified at import and before every load
• Audio never persisted — wiped after transcription

Editing
• Markdown with an Edit / Preview switch (headings, lists, links), 500ms debounced autosave
• [[Title]] backlinks with autocomplete + "notes linking here" panel
• FTS5 + bm25 search, folder filter, configurable sort
• ZIP Markdown export (YAML frontmatter, Obsidian/Logseq compatible)

i18n FR / EN
• Language picker in Settings (FR / EN / System)
• Theme picker (Light / Dark / System)
• Localized legal pages (PRIVACY / TERMS)

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.
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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
  • Version 2.0.9 (4073) suggested Added on Sep 15, 2026

    x86_64

    This version requires Android 7.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • record audio
      This app can record audio using the microphone while the app is in use.
    • com.filestech.notes_tech.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 30 MiB PGP Signature | Build Log

  • Version 2.0.9 (4072) - Added on Sep 15, 2026

    arm64-v8a

    This version requires Android 7.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • record audio
      This app can record audio using the microphone while the app is in use.
    • com.filestech.notes_tech.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 28 MiB PGP Signature | Build Log

  • Version 2.0.9 (4071) - Added on Sep 15, 2026

    armeabi-v7a

    This version requires Android 7.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • record audio
      This app can record audio using the microphone while the app is in use.
    • com.filestech.notes_tech.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 24 MiB PGP Signature | Build Log

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