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Mobile app · Office & notes

Tuta Mail

Encrypted email & calendar service - easy to use, secure by design.

  • Free, with trade-offs
  • Windows, Android and iOS
  • Open source
  • No account

Overview

Features described in its F-Droid listing, in its GitHub repository and on its official website: themes and dark mode, notifications, full-text search, end-to-end encryption.

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
  • “Tutanota comes with a light & beautiful GUI, dark theme included, with instant push notifications, auto-sync, full-text search, swipe gestures and more.” — F-Droid, 10 November 2026
  • “Tutanota comes with a light & beautiful GUI, dark theme included, with instant push notifications, auto-sync, full-text search, swipe gestures and more.” — F-Droid, 10 November 2026
  • “Tutanota comes with a light & beautiful GUI, dark theme included, with instant push notifications, auto-sync, full-text search, swipe gestures and more.” — F-Droid, 10 November 2026
  • “Tuta Mail is the secure email service with built-in end-to-end encryption that enables you to communicate securely with anyone on all your devices.” — GitHub, 10 November 2026
  • “automatically encrypt subject, content and attachments.” — F-Droid, 10 November 2026
  • “auto-complete email addresses as you type from your Tutanota or your phone contacts.” — F-Droid, 10 November 2026

At a glance

Tuta Mail is free, with trade-offs: it relies on a non-free online service.

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 account needed
  • No advertising
  • Commercial use allowed

Weaknesses

  • Flagged by F-Droid: relies on a non-free online service

Sources and checks

  • Facts collected from Winget (Windows Package Manager) (credit card, account, source code, publisher, licence, free status, platforms, commercial use, version) —
  • Facts collected from Unspecified source (platforms) —
  • 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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