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Mobile app · Office & notes

Todo

Secure offline To-Do & Notes with biometric lock.

  • Completely free
  • Android
  • Open source

Overview

Todo is a note-taking mobile app, available on Android.

Features described in its GitHub repository: reminders and due dates.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information
  • “Secure offline To-Do & Notes with biometric lock.” — F-Droid, 10 November 2026
  • “No ads, no tracking, and no internet required.” — F-Droid, 10 November 2026
  • “A calm to-do list and notebook for Android that keeps everything on your phone.” — GitHub, 10 November 2026
  • “Reminders” — GitHub, 10 November 2026

At a glance

All of Todo is free: no feature is locked behind a paid plan, and its code is open.

Its licence (GPL-3.0) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

  • Open source code
  • No advertising
  • Commercial use allowed

Sources and checks

  • Facts collected from F-Droid (credit card, source code, publisher, licence, free status, platforms, ads, commercial use, version) —
  • Last technical check: 6 November 2026
  • Description from F-Droid — F-Droid (citation courte)

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