Best Google Calendar alternatives & replacements (2026)

TC

Tutanota Calendar

Calendar alternatives are worth considering when the incumbent gets expensive, restrictive, or invasive. Tuta Calendar is encrypted end-to-end...

PC

Proton Calendar

Calendar alternatives are worth considering when the incumbent gets expensive, restrictive, or invasive. Proton Calendar is end-to-end encrypted...

TU

Tuta

Calendar Services alternatives are worth considering when the incumbent gets expensive, restrictive, or invasive. Tuta (formerly Tutanota) is...

NE

Nextcloud

Calendar Services alternatives are worth considering when the incumbent gets expensive, restrictive, or invasive. Nextcloud is an easy-to-use...

KN

Kolab Now

Calendar Services alternatives are worth considering when the incumbent gets expensive, restrictive, or invasive. Kolab Now is a...

ET

EteSync

Calendar Services alternatives are worth considering when the incumbent gets expensive, restrictive, or invasive. EteSync is an open-source...