Assembly Line

Calendly vs Easyappointments

Calendly and Easyappointments are both booking and scheduling software. Calendly is a commercial product from Calendly. Easyappointments is open source under GPL-3.0, with 4.5k GitHub stars.

Which to pick

Pick Calendly when
Sales, recruiting or consulting staff spend time on back-and-forth emails to book meetings.
Pick Easyappointments when
A small service business wants online booking on its own PHP hosting without subscription fees.

Side by side

What it does

Meeting scheduling links that check your calendar availability, with round-robin team scheduling, payments, reminders and CRM integration.

A self-hosted appointment booking app where customers book services with staff, with Google Calendar sync, notifications and a REST API.

Watch out

Team features and integrations need paid seats.

Mostly one maintainer, and payment collection is not built in.

Ready for

Production-ready (both)

Runs as

Cloud service, mobile app and browser extension

Self-hosted server

Built with

Not published

PHP, CodeIgniter and MySQL

Source code

Closed source, sold by Calendly

Open source, GPL-3.0 (strong copyleft)

What the license allows

Closed source: you use it under the maker's terms and cannot change or resell the code.

Use inside your business is unrestricted, but anything you distribute that includes it must be released under the same license.

How widely known

1k Wikipedia readers a month on phones

4.5k GitHub stars

How established

Not known

Established: started 12 years ago, latest release 1.6.1.

Other comparisons

More booking and appointment scheduling tools

Every booking and scheduling product and project, ranked

Both sides were judged on 2026-11-03 from makers' descriptions, Wikipedia, READMEs and GitHub data. License, age and popularity lines are worked out directly.