Brex vs Duolingo

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

Brex (rank #257) holds a narrow lead over Duolingo (rank #338) on the overall Smoower ecosystem score (47 vs 43). The gap of 4 points reflects composite signals across code, docs, community and reach.

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

Brex carries 10,822 GitHub stars across 84 public repos, with 28 repositories active in the last 90 days and 13 external contributors on record. Duolingo shows 1,721 stars across 12 public repos, 8 active in the last 90 days and 11 external contributors. The star gap on its own does not decide the comparison, but Brex's footprint is roughly 6.3x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Brex is the stronger read for anyone weighting education. Duolingo looks better where reach 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.