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vsSquare Appointments

eTermin vs Square Appointments

Last updated October 2026

Looking for a European alternative to Square Appointments? Here's how eTermin compares, on EU hosting, GDPR and what it does.

Our pick for a European buyer: eTermin. We weight data residency, GDPR and EU jurisdiction above everything else — that is the constraint this directory exists to solve.

eTermin
Square Appointments
What it is
Swiss appointment scheduling with EU hosting and ISO certifications
Online appointment scheduling and booking with integrated payments.
Headquarters
🇨🇭 CH
🇺🇸 US
EU data residency
Yes, for all customers
not established
DSGVO / GDPR
Yes
Yes
Certifications
ISO 27001, ISO 27018
ISO 27001, PCI DSS Level 1
Price from
€19/mo
$49/mo
Free plan
No
Yes
Open Source
No
No
Ratings
CAPTERRA 4.9/5 (8)
CAPTERRA 4.5/5 (260)
Integrations
Zapier, Integrately, Tray.io, Workload, airSlate +7
Google Calendar, Reserve with Google, Instagram, Facebook

Where each one wins

eTermin

Square Appointments

Strengths

  • +Easy to set up and use for basic scheduling
  • +Seamless integration with Square payments
  • +Automated reminders reduce no-shows

Limitations

  • −Limited customization for advanced workflows
  • −Pricing can become costly for larger teams
  • −Some features locked behind higher-tier plans

Data residency & compliance

eTermin
Square Appointments
EU data residency
Yes, for all customers
not established
Transfer mechanism
Not required — data stays in the EU
Standard Contractual Clauses
DPA
Published →
Published →
Sub-processors
not established
not established
Certifications
ISO 27001, ISO 27018
ISO 27001, PCI DSS Level 1

Pricing

eTermin

  • Lite €19 per monthOnline appointment booking · Automatic confirmation and reminders · Customer management and statistics
  • Pro €29 per monthAll Lite features · Online payment at booking · Marketing functions
  • Enterprise On request Custom development for individual requirements · Single Sign-on/OpenID integration · Priority support

All prices exclude VAT. 30-day free trial available.

Square Appointments

  • Free Free per month
  • Plus $49 per monthbilled annually
  • Premium $149 per monthbilled annually
  • Square Pro On request per monthCustom pricing for high-volume businesses

Prices vary by region. Additional fees may apply.

Features

eTermin

Online appointment booking
24/7 booking via website, booking link, social media or Google, Customizable booking page to match corporate design and workflows, Multi-language support for international customers
Appointment management & organization
Central management of services, staff, resources, locations and booking rules, Support for complex structures with multiple employees and locations, Waitlist function for automatic rebooking of freed slots
Calendar & synchronization
Central overview of appointments, availability and bookings, Synchronization with Google Calendar, Outlook, iCloud and other calendar services
Customer management & marketing
Automatic customer management, Reminders via email, SMS or WhatsApp to reduce no-shows, Marketing functions for customer acquisition and utilization optimization
Payments & security
Online payment directly during booking, Two-factor authentication for access, GDPR-compliant data processing

Square Appointments

Scheduling and booking
Online booking site for clients, Unlimited staff calendars, Service and staff schedules, Waitlists
Client communications
Text and email reminders, Confirmations via Square Assistant, Rescheduling and cancellation options
Payments and POS
Integrated checkout, Square hardware compatibility, Gift cards, Cancellation/no-show protections (paid plans)
Staff management
Staff permissions, Performance tracking, Flat-rate or tiered commissions
Reporting
Appointment and sales reports, Busy times analysis, Staff performance metrics, Client retention insights
See eTermin →More Square Appointments alternatives