Cal.dyivsZulip
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| Cal.dyi | Zulip | |
|---|---|---|
| Score | 81/100 | 82/100 |
| Rank in category | #1 of 15 in Productivity | #1 of 110 in Chat |
| GitHub stars | 49 487 | 26 133 |
| Stars, last 30 days | +858 | +190 |
| Stable releases, 12 months | 10 | 6 |
| Latest release | v6.2.0 · 1 Mar 2026 | 12.3 · 21 Sept 2026 |
| Setup | Advanced | Moderate |
| Official Docker image | Yes | Yes |
| License | MIT | Apache-2.0 |
| Main language | Typescript | Python |
Which one should you pick?
Zulip scores 82/100 against 81/100 for Cal.dyi, so it is the safer default.
Cal.dyi ships more often: 10 stable releases in the past year, against 6 for Zulip.
If you want the quickest setup, Zulip is easier to run; Cal.dyi needs more configuration.
Cal.dyi is growing faster right now (+858 stars in 30 days).
Cal.dyi details →Zulip details →
Swap a project
Keep Cal.dyi, compare it with
Keep Zulip, compare it with