Duolingo vs Segment

Duolingo and Segment both appear on the Smoower Developer Ecosystem Index.

Segment (rank #103) holds a modest lead over Duolingo (rank #338) on the overall Smoower ecosystem score (55 vs 43). The gap of 12 points reflects composite signals across code, docs, community and reach.

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

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. Segment shows 58,406 stars across 421 public repos, 53 active in the last 90 days and 12 external contributors. The star gap on its own does not decide the comparison, but Segment's footprint is roughly 33.9x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Duolingo is the stronger read for anyone weighting reach. Segment 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.