Skip to content

Software · Office & notes

Tuta (Experimental)

Secure email, calendar & contacts.

  • Limited free plan
  • Linux, Android and iOS
  • Open source

Overview

Features described on its official website and in Wikidata: 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
  • “Free and open-source end-to-end encrypted email software and host.” — Wikidata, 10 November 2026

At a glance

Tuta (Experimental) offers a limited free plan; advanced features or heavier use are paid.

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.

Plans and conditions

  • Free plan: basic features are free; others are reserved for paid plans.
  • Paid subscriptions from 3 € per month (price read on the official page).

Strengths

  • Open source code
  • No credit card asked
  • Commercial use allowed

Weaknesses

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

About

Tuta mail is an email client with a strong focus on security and privacy that lets you encrypt emails on all your devices. Important: Flatpak release is in a preview stage and there are known issues. When reporting bugs please always specify that you are using Flatpak version. Keep your messages private and safe from any tracking: Tutanota is the most secure email service - fast, encrypted & open source. Trusted by 10 million users and recommended by security & privacy experts, this is the go-to app to protect your private emails and calendars from prying eyes. Tuta's secure email app also has an encrypted calendar & encrypted contacts, all in one place. Tutanota enables you to use the benefits of the cloud - availability, flexibility, automatic back-up - without compromising on security or privacy. With Tutanota's built-in encryption you own your data, no one else can access your private emails, calendars or contacts.

Description from Flathub — AppStream (Flathub)

Sources and checks

  • Facts collected from Unspecified source (platforms) —
  • Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) —
  • Facts collected from Official plan pages (pricing, licence, terms) (limits, free status, commercial use) —
  • Facts collected from Wikidata (platforms) —
  • Last technical check: 5 November 2026
  • Description from Flathub — AppStream (Flathub)

How listings are built →

Do you develop Tuta (Experimental)?

Correct this listing with the report form, or cite it with this optional badge (it shows the verified free status and changes nothing in the ranking):

<a href="https://licitpro.fr/en/resource/tuta-experimental"><img src="https://licitpro.fr/badge/tuta-experimental.svg?l=en" alt="Listed on LicitPro" height="20"></a>

Developers and publishers →

In the same category

ONLYOFFICE Desktop Editors

Software · Open source

ONLYOFFICE Desktop Editors is an office suite, available on Windows, macOS, Linux, Android and iOS: word processing, spreadsheets and presentations (slide shows).

Completely freeWinMacLinuxAndroidiOS

LibreOffice

Software · Open source

LibreOffice is an office suite, available on Windows, macOS, Linux and Android: word processing, spreadsheets and presentations (slide shows).

Completely freeWinMacLinuxAndroid

Obsidian

Software

Obsidian is a note-taking program, available on Windows and Linux: Markdown support, plugins and add-ons, hardware acceleration.

Completely freeWinLinux

WPS Office

Software

WPS Office is an office suite, available on Windows and Linux.

Limited free planWinLinux

PDF Arranger

Software · Open source

PDF Arranger is a PDF toolkit, available on Windows and Linux: PDF merging, PDF splitting and page extraction.

Completely freeWinLinux

Foliate

Software · Open source

Foliate is an e-book reader, available on Linux.

Completely freeLinux