head to head · open source
apscheduler vs appointment
apscheduler has 7,630 GitHub stars, 784 forks, 53 open issues and last shipped 8 days ago. appointment has 552 stars, 29 forks, 186 open issues and last shipped 2 days ago. apscheduler leads on adoption by 1,282% (7,630 vs 552 stars). apscheduler is written in Python under MIT; appointment is written in Python under MPL-2.0. apscheduler has attracted 10% as many forks as stars, appointment 5%. appointment was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (scheduling), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
← all 8884 open source comparisons
Side by side
| apscheduler | appointment | |
|---|---|---|
| GitHub stars | ★ 7.6K | ★ 552 |
| License | MIT | MPL-2.0 |
| Written in | Python | Python |
| Last push | 2026-09-10 | 2026-09-16 |
| Forks | ⑂ 784 | ⑂ 29 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick apscheduler if
- You weight community size — 7.6K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick appointment if
- You want the appointment feature set and don't need the biggest community
- You prefer the MPL-2.0 license terms
- Your stack matches Python
- You evaluated both and appointment fits your workflow better
About apscheduler
APScheduler is an MIT licensed Python library that provides task scheduling and job queuing, scaling from a single process script to multi node deployments that share a persistent data store.
read the full apscheduler overview →
About appointment
Thunderbird Appointment is a self hostable, MPL 2.0 licensed scheduling application from the Thunderbird project that lets someone publish their availability and invite others to book open times on their calendar, and it is aimed at individuals, teams and organisations that want a booking link workflow running on infrastructure they control.
read the full appointment overview →
More in Business Software
Related comparisons
More Scheduling & Event Management projects
Compare either of these against the rest of the Scheduling & Event Management field.
Frequently asked questions
Is apscheduler or appointment more popular?
apscheduler has 7,630 GitHub stars and appointment has 552. apscheduler has the larger community by that measure.
Are apscheduler and appointment free?
Both are open source. apscheduler is licensed under MIT and appointment under MPL-2.0. Neither carries a licence fee.
What is the difference between apscheduler and appointment?
apscheduler is written in Python and appointment in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, apscheduler or appointment?
Choose apscheduler if you want the larger community (7,630 stars) or its MIT licence terms. Choose appointment if its feature set, stack or MPL-2.0 licence fits better. Both are self-hostable.