Amplitude vs Zulip

Amplitude and Zulip (Organized team chat) both appear on the Smoower Developer Ecosystem Index.

Amplitude (rank #93) holds a modest lead over Zulip (rank #536) on the overall Smoower ecosystem score (56 vs 36). The gap of 20 points reflects composite signals across code, docs, community and reach.

On code quality (the state of repositories, tests, releases and polish), Amplitude is slightly ahead of Zulip. On education (docs, guides and learning material for developers), Zulip is slightly ahead of Amplitude. On community (issue response, PR reviews and discussion health), Zulip is slightly ahead of Amplitude. On reach (how visible the ecosystem is beyond its own repos), Zulip is slightly ahead of Amplitude. On momentum (release cadence and how fast the ecosystem moves), Amplitude is clearly ahead of Zulip.

Amplitude carries 3,167 GitHub stars across 151 public repos, with 39 repositories active in the last 90 days and 23 external contributors on record. Zulip shows 32,299 stars across 67 public repos, 9 active in the last 90 days and 76 external contributors. The star gap on its own does not decide the comparison, but Zulip's footprint is roughly 10.2x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Amplitude is the stronger read for anyone weighting momentum. Zulip looks better where education is the deciding factor. The table below breaks the scores down pillar by pillar; the linked profiles cover the underlying repos, docs and community signals in full.