Calendar

Name: Calendar
Author: elementary, Inc.

by elementary, Inc.

View and schedule events

Sandboxed Unverified publisher GPL-3.0+ v8.0.2

Install

Support the creators

Flatsonar is just the shop window. The people below made Calendar.

Donate

About

A slim, lightweight calendar app that syncs and manages multiple calendars in one place, like Google Calendar, Outlook and CalDAV.

Permissions

Fully sandboxed: no extra permissions requested.

Who publishes this

Nobody has confirmed that the publisher controls this app id. Flatsonar warns before installing.

io.elementary.calendar claims the io.elementary namespace, but no hosting location is known to check it against
publisher:namespace
same name as org.gnome.Calendar on Flathub but from a different repository
publisher:lookalike

Maintenance

Recent activity on the upstream repository, or built and reviewed by Flathub.

No staleness signals: recent activity, or built and reviewed by Flathub.

Install

From the project's own remote

flatpak remote-add --if-not-exists appcenter https://flatpak.elementary.io/repo.flatpakrepo

flatpak install appcenter io.elementary.calendar

https://flatpak.elementary.io/repo.flatpakrepo

Adds a third-party remote: future updates of this app come from it.

Installing with the Flatsonar desktop app adds the checks the terminal does not: the files are unpacked and scanned, the real permissions are re-scored, and you are asked twice if anything is off. Get it.

Details

App id: io.elementary.calendar
License: GPL-3.0+
Version: 8.0.2
Categories: Office, Calendar
Where: Outside Flathub
Listed since: Sep 21, 2026

For developers

Link back to this listing from your README:

[![Get it on Flatsonar](https://img.shields.io/badge/Get_it_on-Flatsonar-6f42c1)](https://flatsonar.org/apps/io.elementary.calendar)