Notes Tech app for Android description
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.
