Google Calendar scheduling with a booking link
Connect your Google account, set the hours you take meetings, and share one link. Kalendarius looks at your Google Calendar for busy times, offers the gaps on a booking page, and writes each booking back into the same calendar, with a Google Meet link if you want one.
Kalendarius checks one Google Calendar per connected Google account and writes new bookings into it. Google notifies us when that calendar changes, so your free slots update on their own. We don't store the titles or descriptions of your other events.
How the Google connection works
You connect through Google's own sign-in and consent screen (OAuth), so Kalendarius never sees your Google password. From then on we check free and busy times on the connected calendar. When an event is added or moved, Google notifies Kalendarius, and the open slots on your booking page change to match.
When a guest books, the event shows up in your Google Calendar a few moments later. If the event type's location is Google Meet, the event and the guest's confirmation email both carry a Meet link created for that booking.
One Google account, plus Microsoft and Zoho if you need them
Each user can connect one Google account, one Microsoft 365 or Outlook account and one Zoho account at the same time. If your work calendar is in Google Workspace and your personal one is in Outlook, connect both and busy times in either one block your booking slots.
What you can't do is pick several calendars inside the same Google account, or connect two Google accounts. If you keep private appointments in a second Google calendar, those won't block slots. Zoho is the only connection where you choose several calendars; see Zoho Calendar scheduling.
Settings for each event type
Each event type has a duration, buffers before and after, a minimum notice period and a limit on how far ahead people can book. The location can be Google Meet, Microsoft Teams or Zoho Meeting (created automatically), a phone call, an address, or a link you paste yourself, such as a Zoom room.
The booking page shows your logo and brand colour and can ask your own questions. Guests see the times in their own time zone. After booking they get a confirmation email with a calendar file, links to cancel or reschedule, and reminders by email 24 hours and 1 hour before.
Where the data goes
Kalendarius runs on Hetzner servers in Germany. Your Google Calendar stays with Google, under your Google account or Workspace terms, and the bookings we write into it are processed there too. Public booking pages load no advertising or analytics trackers. For a checklist of what else to review, see our guide to GDPR-compliant scheduling software.
What it costs
Personale is free for one organizer, one event type and 15 bookings a month. Professionista, at €5.90 a month, gives you five event types and unlimited bookings. If several colleagues need to share links, Team costs €9.90 per organizer per month and adds collective and round-robin links. Start free on the Personale plan and connect Google from the dashboard.
Frequently asked questions
Can I check more than one Google calendar for conflicts?
No. Kalendarius checks one calendar per Google connection, and each user connects one Google account. You can add one Microsoft and one Zoho account alongside it.
Does Kalendarius store my Google Calendar events?
It checks free and busy times and does not store the titles or descriptions of your other events. Bookings made through Kalendarius are stored with us and written into your calendar.
Are Google Meet links created automatically?
Yes, if you set the event type's location to Google Meet. Each booking gets its own Meet link in the calendar event and the confirmation email.
Can I embed the booking page on my website?
No, there is no embeddable widget. Link to your booking page from a button on your site, your email signature or your social profiles.
Related guides
Collective and round-robin booking links for up to 25 organizers at €9.90 each a month. Colleagues who only connect a calendar don't pay.
A Calendly alternative hosted in Germany. Team costs €9.90 per organizer a month, and interviewers who only connect a calendar don't pay.
Booking links that check your Outlook calendar and add a Teams link to each meeting. You connect via OAuth, never with your Exchange password.
Compare scheduling software for GDPR readiness: review hosting, calendar integrations, booking data, DPAs, subprocessors, retention and deletion.
Is Calendly GDPR compliant? Calendly stores user and invitee data in US data centres. What its DPA says about transfers, and what EU teams should check.
Connect your Google Calendar
Create a free account, connect Google and share your first booking link. Personale covers one event type and 15 bookings a month.
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