Digistorm vs ETAR
A side-by-side comparison of two self-hosted calendar & contacts options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
Digistorm
Create collaborative surveys, quizzes, brainstorms, and word clouds
VS
ETAR
Open-source calendar server companion for events
| Feature | Digistorm | ETAR |
|---|---|---|
| Category | Calendar & Contacts | Calendar & Contacts |
| License | AGPL-3.0 | GPL-3.0 |
| Language | Nodejs | Java |
| Setup difficulty | Medium | Medium |
| Min. RAM | 512 MB | 256 MB |
| Deployment | bare-metal | docker, source |
| GitHub stars | — | ★ 2,565 |
| First released | 2020 | 2016 |
| Replaces | — | Google Calendar |
Why pick each one
Choose Digistorm if…
- Released under the AGPL-3.0 license
- Written in Nodejs
- Lightweight — runs in 512 MB RAM
Frequently asked questions
Is Digistorm or ETAR better?
Neither is universally better. ETAR has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Digistorm and ETAR free and open-source?
Yes. Digistorm is licensed under AGPL-3.0 and ETAR under GPL-3.0. Both can be self-hosted at no software cost.
Can I run Digistorm and ETAR with Docker?
Digistorm: check the project docs for container support. ETAR: yes.