sendinblue (now Brevo) vs Zulip

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

sendinblue (now Brevo) (rank #372) holds a narrow lead over Zulip (rank #536) on the overall Smoower ecosystem score (42 vs 36). The gap of 6 points reflects composite signals across code, docs, community and reach.

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

sendinblue (now Brevo) carries 653 GitHub stars across 37 public repos, with 0 repositories active in the last 90 days and 0 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 49.5x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

sendinblue (now Brevo) is the stronger read for anyone weighting education. Zulip looks better where momentum 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.