Skip to content
EN

Mobile app · Office & notes

Etar - OpenSource Calendar

Etar is a material designed open source calendar, for everyone!

  • Completely free
  • Android
  • Open source

At a glance

Etar - OpenSource Calendar is completely free: it is open source software, and every feature is available without paying or subscribing.

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, licence, free status, platforms, ads, commercial use, version) —
  • Last technical check: 7 November 2026
  • Description from F-Droid — F-Droid (citation courte)

How listings are built →

Do you develop Etar - OpenSource Calendar?

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/etar-opensource-calendar"><img src="https://licitpro.fr/badge/etar-opensource-calendar.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