Calcom Calendar vs Pollaris
A side-by-side comparison of two self-hosted apps from related categories — 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
Pollaris
Polling tool to plan, organise and make decisions quickly
| Feature | Calcom Calendar | Pollaris |
|---|---|---|
| Category | Groupware | Project Management & Tasks |
| License | AGPL-3.0 | GPL-3.0-only |
| Language | TypeScript | |
| Setup difficulty | Medium | Medium |
| Min. RAM | 1,024 MB | 50 MB |
| Deployment | docker, bare-metal, source | bare-metal |
| GitHub stars | ★ 47,334 | — |
| First released | 2021 | 2025 |
| Replaces | Calendly, Doodle | Doodle, OpenSondage |
Why pick each one
Choose Pollaris if…
- Released under the GPL-3.0-only license
- Tiny footprint — runs in 50 MB RAM
Frequently asked questions
Is Calcom Calendar or Pollaris better?
Neither is universally better. Calcom Calendar has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Calcom Calendar and Pollaris free and open-source?
Yes. Calcom Calendar is licensed under AGPL-3.0 and Pollaris under GPL-3.0-only. Both can be self-hosted at no software cost.
Can I run Calcom Calendar and Pollaris with Docker?
Calcom Calendar: yes. Pollaris: check the project docs for container support.