One calendar for every role you play.

Other tools schedule meetings. Mein Kalender makes sure your calendars agree on when you are free. Google, Outlook and Proton — in one view.

Start free trial

14 days free. No credit card.

Google Outlook Proton Mein Kalender

You can see at a glance that it works.

This week's appointments, open clashes, connected calendars and the state of every connection — on one page, without digging.

Mein Kalender dashboard: 12 appointments this week, no clashes, three calendars connected, status all OK.

Built in Europe, hosted in Europe.

Servers in Germany, mail delivery in France, backups in the Netherlands. No processor in the United States — not for fonts and not for analytics either. Run by a German company, not by a holding in Delaware.

As many booking pages as you have roles.

Each with its own logo, background and colours — your consulting mandate does not have to look like your board seat. There is no cap on the number, and none on calendars either.

A booking page with its own branding: background image, portrait and typography above the booking form.

Proton. Outlook. Google. One view.

Google and Outlook sync both ways. Proton Calendar comes in as a read-only view — no bridge, no workaround.

Week view with appointments from Google, Outlook and Proton Calendar in distinct colours; the Proton calendar is marked read-only.

Spot the clash before it happens.

Board meeting at 2pm at company A, client call at 2pm at company B? You get told.

A detected clash between an Outlook appointment and a Google appointment on the same morning.

One plan. Everything in it.

€5 /month

incl. VAT · cancel any month

  • Multi-calendar sync
  • Branded booking pages
  • Sync cockpit
  • Proton Calendar (read-only)
  • Clash detection
  • Unlimited calendars
Start free trial

14 days free. No credit card.

One thing to know before you sign up: the app interface is German. The booking pages your invitees see are available in English, German, French, Spanish and Dutch.