Duolingo vs sendinblue (now Brevo)

Duolingo and sendinblue (now Brevo) both appear on the Smoower Developer Ecosystem Index.

Duolingo (rank #338) holds a narrow lead over sendinblue (now Brevo) (rank #372) on the overall Smoower ecosystem score (43 vs 42). The gap of 1 points reflects composite signals across code, docs, community and reach.

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

Duolingo carries 1,721 GitHub stars across 12 public repos, with 8 repositories active in the last 90 days and 11 external contributors on record. sendinblue (now Brevo) shows 653 stars across 37 public repos, 0 active in the last 90 days and 0 external contributors.

Duolingo is the stronger read for anyone weighting momentum. sendinblue (now Brevo) 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.