European alternatives to Outlook Calendar.

US-headquartered calendar by Microsoft.

2 EU alternatives · 2 countries · 1 open source · All in Calendar-scheduling

Why switch from Outlook Calendar?

The most common reasons buyers tell us they're moving to an EU alternative.

CLOUD Act exposure

US authorities can compel non-EU providers to hand over data even when stored on EU servers — incompatible with strict data-sovereignty contracts.
DPAs & CJEU rulings

Multiple EU DPAs have ruled that data transfer to the US violates GDPR Article 44 without further safeguards.
Procurement requirements

Many EU public-sector and regulated tenders now require EU-jurisdiction software and data residency. Tools listed here meet those requirements out of the box.
Vendor diversity

Reducing dependence on a small number of US hyperscalers and SaaS providers is a strategic goal across many EU governments and enterprises.

Showing 2 European alternatives to Outlook Calendar

Beautiful event registration from Dublin

Encrypted German calendar bundled with Tuta Mail

Browse alternatives to other commonly-used non-EU products.