CalioCalio vs Cal.com: EU hosting without self-hosting
Cal.com started as the open-source favourite, but its cloud version runs on US infrastructure — real EU data residency means hosting it yourself, DevOps work and maintenance included. Since 2026 the main codebase is also closed-source, with "Cal.diy" as the community edition.
Calio gives you the privacy benefit without the operational burden: a ready-made scheduler that runs entirely inside Europe by default.
Calio and Cal.com side by side
| Feature | Calio | Cal.com |
|---|---|---|
| Public booking page | Unlimited event types, including on the free plan | Yes, free for individual use |
| Double bookings | Impossible — enforced at database level | Prevented through calendar checks |
| Confirmations & reminders (email) | Automatic, 24 hours and 1 hour before | Yes, workflows partly paid |
| Guests reschedule or cancel themselves | Through the link in their email | Yes |
| Google & Microsoft calendar sync | Busy-time sync + bookings written to your calendar | Yes, plus other calendar providers |
| EU data hosting | Servers and database in Amsterdam | Only by self-hosting (the cloud is US-hosted) |
| European company & support | Dutch company; guest flow in Dutch, English and German | No — US company |
| iDEAL payments | Pay in full or a deposit at booking, through Mollie | No — payments through Stripe |
| Round-robin for teams | One link, meetings shared across the team | Yes, including on the free plan |
| AI booking in plain language | Guests type what they need; Calio offers real open slots | Cal.ai phone agent (paid, per minute) |
| AI agent that negotiates over email | on the roadmapSchedules with the other party’s calendar on its own | Cal.ai does part of this |
Cal.com features based on public information and reviews; they may differ per subscription and may have changed since.
What does it cost?
Cal.com charges (as of February 2026) $12 per user per month for Teams (billed yearly; about $16 monthly) and $28 for Organizations; individual use is free. Calio has a free plan that stays free; paid plans start at €8 per user per month billed yearly. Prices may have changed since; always check the vendor’s current pricing page.
Why people switch to Calio
EU privacy without DevOps
With Cal.com, EU data residency means hosting, updating and securing it yourself. Calio runs entirely inside Europe by default — you create an account and you are done.
Built for the European market
Guest emails in Dutch, English or German, EU payment methods through Mollie (iDEAL, card) and a roadmap aimed at European tooling.
Simplicity over configuration
Cal.com is powerful but configuration-heavy. Calio sticks to the essentials: share a link, connect a calendar, done.
Frequently asked questions
Is Calio open source like Cal.com?
No. As it happens, Cal.com itself has been largely closed-source since 2026 (the community edition is called Cal.diy). Calio makes a different promise: a managed service that runs entirely in the EU by default.
Why not just self-host Cal.com?
You can, but then servers, updates, backups and security are yours to run. Calio gives you EU hosting as a service, with nothing to administer.
What does Calio cost compared to Cal.com?
Both have a free plan for individual use. Calio’s paid plans start at €8 per user per month billed yearly; Cal.com Teams is $12 (as of February 2026).
Try Calio for free
Booking link in 2 minutes, calendar connected, data in Europe. No credit card needed.
Start free