Open Scheduling Software Comparison Database

Last updated: May 2026

This is a public comparison database for appointment scheduling and appointment booking tools.

Best tools by use case

Use case	Strong tools to compare	Best starting point
Calendar scheduling software	Lunacal, Calendly, Cal.com, SavvyCal, Microsoft Bookings	Compare calendar sync, booking links, reminders, and team features
Appointment booking apps	Lunacal, Acuity Scheduling, Setmore, SimplyBook.me, Square Appointments	Compare payments, forms, services, staff, and reminders
Coaching scheduling software	Paperbell, Lunacal, Acuity Scheduling, Calendly, TidyCal	Compare packages, paid sessions, client portals, and reminders
Scheduling software for small businesses	Lunacal, Acuity Scheduling, Setmore, Calendly, SimplyBook.me	Compare price, ease of use, payments, and team scheduling
Calendly alternatives	Lunacal, Acuity Scheduling, Cal.com, HubSpot Meeting Scheduler, Setmore	Compare based on use case rather than brand popularity
GDPR-ready scheduling tools	Calendly, Cal.com, Microsoft Bookings, Acuity Scheduling, Lunacal	Check DPA, subprocessors, deletion, export, and data handling

Pages

• Calendar scheduling software
• Appointment booking apps
• Coaching scheduling software
• Scheduling software for small businesses
• Calendly alternatives
• GDPR compliant scheduling tool checklist
• Methodology
• Feature matrix
• Pricing snapshot