Calcom Calendar vs SOGo
A side-by-side comparison of two self-hosted groupware options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
Calcom Calendar
Open-source scheduling and appointment booking platform
VS
SOGo
Scalable groupware server with webmail, calendar and contacts
| Feature | Calcom Calendar | SOGo |
|---|---|---|
| Category | Groupware | Groupware |
| License | AGPL-3.0 | GPL-2.0 |
| Language | TypeScript | Objective-C |
| Setup difficulty | Medium | Hard |
| Min. RAM | 1,024 MB | 1,024 MB |
| Deployment | docker, bare-metal, source | docker, bare-metal |
| GitHub stars | ★ 47,334 | ★ 2,143 |
| First released | 2021 | 2009 |
| Replaces | Calendly, Doodle | Microsoft Exchange, Microsoft 365 |
Why pick each one
Frequently asked questions
Is Calcom Calendar or SOGo better?
Calcom Calendar is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider SOGo if its specific feature set fits your needs better.
Are Calcom Calendar and SOGo free and open-source?
Yes. Calcom Calendar is licensed under AGPL-3.0 and SOGo under GPL-2.0. Both can be self-hosted at no software cost.
Can I run Calcom Calendar and SOGo with Docker?
Calcom Calendar: yes. SOGo: yes.