As of 29 Oct 2026, the panel rates Calendly 3.5/5 and zeeg 3.5/5 in Appointment Scheduling. Weighted by what each judge cares about, 1 of the 6 judges picks Calendly and 5 pick zeeg. Calendly scores higher on 3 of 7 criteria (Team, staff & location scheduling, Integrations, API & data export and Booking page & client experience). zeeg scores higher on 4 of 7 criteria (European sovereignty, Pricing transparency, Calendar sync & availability rules, plus 1 more). Provenance — Calendly: Rest of world; zeeg: EU-Made. Ratings are the AI panel’s opinion, formed from public evidence: how scores are made.
The benches split by criterion rather than collapsing into one verdict. Calendly is ahead on team scheduling (mean 9.2 to zeeg's 8.2; six judges lean Calendly, zero lean zeeg), on integrations and data (7.7 to 7.0; four lean Calendly) and on booking experience (6.3 to 6.0; two lean Calendly). Zeeg is ahead on calendar and availability (7.2 to 6.5; four lean zeeg), reminders and no-shows (6.3 to 6.0; two lean zeeg), pricing transparency (7.0 to 5.8; six lean zeeg) and sovereignty (7.0 to 4.0; six lean zeeg). Of the four judges with published weighted totals, the sales team lead has Calendly ahead, 7.5 to 7.2, while the consultant, the data protection officer and the skeptic have zeeg ahead. Sovereignty as it stands: Calendly's legal entity jurisdiction is US with US-default data residency; zeeg's is DE with EU-only data residency and US Cloud Act subprocessor exposure.
Choose Calendly if
You need team scheduling with SSO/SAML, SCIM provisioning and an audit log — Calendly's mean there is 9.2 against zeeg's 8.2, and six judges lean Calendly.
Your team routes leads by Salesforce ownership — Calendly's verdict cites routing forms that route on Salesforce ownership.
Your operations rely on integrations and data exports such as CSV-exportable distribution statistics — Calendly's mean is 7.7 against zeeg's 7.0, with four judges leaning Calendly.
You are a sales team lead — that judge's published weighted total puts Calendly at 7.5 against zeeg's 7.2.
You prioritize the booking experience — Calendly's mean is 6.3 against zeeg's 6.0, with two judges leaning Calendly and four tied.
Choose zeeg if
You need data residency that stays within the EU and a Berlin-based contracting entity — zeeg's data residency attribute is EU-only, its legal entity jurisdiction is DE, and its sovereignty mean is 7.0 against Calendly's 4.0 with six judges leaning zeeg.
You must see full published pricing before buying — zeeg publishes 10 €, 16 € and 30 € per user per month billed annually excluding VAT, and pricing transparency stands at 7.0 against 5.8 with six judges leaning zeeg.
Your scheduling load centers on calendars and availability — zeeg's mean is 7.2 against Calendly's 6.5, with four judges leaning zeeg.
You want no-show history on contact records and attendance analytics — reminders and no-shows stands at 6.3 against 6.0, with two judges leaning zeeg.
You are a data protection officer — that judge's published weighted total puts zeeg at 7.1 against Calendly's 6.2.
Read this comparison as one judge. Each weighs the same scores by what they care about.
The Practice Owner
Runs a physiotherapy practice with six therapists, two treatment rooms that must not be double-booked, and a front desk that spends its mornings on the phone. Wants patients to book and reschedule online, SMS reminders that cut the no-shows, rooms and therapists checked together, and patient data that stays in Europe under a data processing agreement the practice can show.
Calendly
zeeg
This judge's pick
Criterion by criterion
Booking page & client experience
Calendly
Event types carry their own durations, booking questions like a phone field can be added, returning patients' details can be remembered, the page embeds on our website with matching colors, time zones are detected for both sides, and cancel/reschedule links go out in invitations and reminders. Group and one-to-one bookings both exist and an event can be set to another language. We found no public information on seat limits for group events, on removing the vendor's branding, or on accessibility of the booking flow, so it stays short of a finished storefront with intake forms or patient accounts.
zeeg
Round-the-clock booking on a page I can embed on the practice website, with intake forms and questionnaires at booking, support for group sessions and webinars, and a reschedule link sent in follow-up messages. We found no public information on booking pages in several languages, seat limits for group events, branding without the vendor's logo, or an accessibility statement for the booking flow.
Calendar sync & availability rules
Calendly
Connected Google, Office 365/Outlook.com and Exchange calendars are checked for busy times and new bookings written back to them, up to six per person on paid plans, with preferred hours, buffers, minimum notice, date ranges and daily-to-monthly meeting limits all documented. For my two treatment rooms the gap is decisive: we found no public information on rooms or equipment that must be free alongside the therapist, nor on iCloud or CalDAV sync.
zeeg
Two-way sync with Google, Microsoft, Exchange, iCloud and CalDAV, conflict checks across whichever calendars I choose, buffers, blocked hours, out-of-office periods and public holidays — enough to keep my six therapists from being double-booked. We found no public information on rooms or equipment as bookable resources, which is exactly what my two treatment rooms need, nor on booking windows or daily limits.
Team, staff & location scheduling
Calendly
Round-robin events auto-assign the next available host with a configurable distribution method, per-host schedules and locations, collective events, routing forms that direct a patient by their answers, owner and admin roles, and a CSV showing how meetings were distributed across the team. Enterprise layers on SSO with SAML, SCIM provisioning, audit logs, domain control and Salesforce lookup routing driven by account, contact or lead ownership. Close to a full team system.
zeeg
Round-robin in even or availability-maximising mode with high, medium or low priority per member and a cap on meetings per person, routing by region, language or form answers, five organization roles plus two team roles with granular permissions, an activity log, and single sign-on with SCIM role assignment through Microsoft Entra ID. We found no public information on collective bookings needing several staff at once, or on several locations with their own staff.
Reminders, payments & no-show protection
Calendly
Email and text reminders before and after events with customizable subject and body from the Standard plan, SMS running through Twilio, and payments at booking through Stripe and PayPal including a worked example of a client paying a $150 deposit upfront. But the cancellation policy is only displayed — the help pages state it doesn't restrict cancellations or reschedules based on the policy — and we found no public information on no-show or late-cancellation fees or a waiting list that refills cancelled slots.
zeeg
Workflows send confirmation and reminder emails and SMS before the event, plus follow-ups, surveys and a message with a reschedule link when someone is marked a no-show; payment can be collected at booking through PayPal or Stripe, no-show history sits on each contact record with attendance analytics, and the vendor publishes its own cancellation and reschedule rates from a million meetings. We found no public information on deposits, a cancellation deadline the system enforces, no-show fees, or a waiting list that refills freed slots.
Integrations, API & data export
Calendly
A documented public API with OAuth and personal access tokens, real-time webhooks with a signing key covering scheduled events, invitee answers including custom questions, contacts and routing submissions, named connections to HubSpot, Salesforce, Mailchimp, Marketo, Pardot, Dynamics, Zapier, Stripe, PayPal, Zoom, Google Meet and Teams, and CSV exports of routing responses and round-robin statistics. We found no public information on published rate limits, an SDK, or a self-hosting or stated migration option.
zeeg
A documented API with bearer authentication and webhooks covering bookings, cancellations, no-shows and routing-form submissions, native HubSpot, Pipedrive and Salesforce connections, Zapier, and automatic video links for Zoom, Google Meet, Microsoft Teams, Webex and Whereby. We found no public information on an export of bookings and customer records, on API rate limits, or on an SDK for embedding.
European sovereignty
Calendly
A published data processing agreement with Standard Contractual Clauses, the Irish Data Protection Commission named, a subprocessor list and SOC 2 Type 2 and ISO 27001 certifications exist, which is more than bare paperwork. But the contracting entity is Calendly LLC of Buford, Georgia, processing is stated to occur in the United States and other jurisdictions outside the residence of the data subjects, and the listed chain — Twilio for SMS, Zendesk and Intercom for support, Google for infrastructure and analytics — is essentially all USA, with no EU hosting option on the captured pages. The data processing agreement also states that sensitive personal information and special-category data may not be submitted at all, which is precisely what my patients' physiotherapy records are.
zeeg
Zeeg GmbH is registered in Berlin, hosting runs with Telekom Deutschland under an Article 28 agreement (the terms describe Germany only while the privacy policy names data centers in Germany and the Netherlands — both in the EU), email and SMS go through Brevo in Berlin, a subprocessor list with locations is published, and a data processing agreement is included — the paper my front desk can show a patient. US providers appear in the chain for support and content delivery, and we found no public information on security certifications such as ISO 27001 or SOC 2.
Pricing transparency
Calendly
Standard is listed at $10 per seat per month and Teams at $16 per seat per month, both billed yearly with savings of up to 20% advertised, a free tier allows one calendar against six on paid plans, and the terms state month-to-month or 12-month commitments with taxes on the customer. I still cannot compute my real annual cost: we found no public information on the price of SMS reminders beyond Twilio limits per user per month, on payment processing fees, on the Notetaker and Callie add-on, or on the Enterprise tier.
zeeg
Tiers are public per user with VAT stated — Starter dauerhaft kostenlos with two booking pages, Professional 10 € /Monat/Nutzer, Business 16 € and Scale 30 €, jeweils jährlich abgerechnet zzgl. MwSt. — SMS is priced (10 free credits a month on paid plans, an extra bundle of 1000 credits for €9.99/month net), monthly billing has no lock-in, and annual terms renew with six weeks' notice. The Enterprise tier is custom on request, and we found no public information on payment processing fees or the exact monthly-billing prices.
Sovereignty, side by side
Dimension
Calendly
zeeg
Legal entity
Not determined
Not determined
Hosting location
Not determined
Not determined
Hosting options
Not determined
Not determined
Open source
Not determined
Not determined
Data processing agreement
Not determined
Not determined
Transfer impact assessment
Not determined
Not determined
Facts, side by side
Only facts both products carry under the same definition — anything else would not be a fair row.
As of 29 Oct 2026, the panel rates both 3.5/5. Weighted by what each judge cares about, 1 of the 6 judges picks Calendly and 5 pick zeeg. Which one fits depends on the criteria that matter to you; the table on this page shows both side by side, and each judge’s reading has its own page. Both were scored by the same AI bench under the same rubric, from public evidence only, as the methodology describes.
Is Calendly or zeeg European?
Calendly is not European by provenance (Rest of world). zeeg is European (EU-Made). Provenance is read from each company’s own legal pages: who builds it and who owns it.
Where do Calendly and zeeg store customer data?
Per the vendors’ own pages as captured — Calendly: its pages as captured do not say. zeeg: Default not stated; pages mention Germany.
Do Calendly and zeeg have a free plan?
As of 29 Oct 2026, Calendly’s own pages state a free plan; zeeg’s pages as captured do not. Each product page links the pricing page it was read from.