Duolingo vs Pinterest

Duolingo and Pinterest (Pinterest's Open Source Projects) both appear on the Smoower Developer Ecosystem Index.

Duolingo (rank #338) holds a narrow lead over Pinterest (rank #430) on the overall Smoower ecosystem score (43 vs 40). The gap of 3 points reflects composite signals across code, docs, community and reach.

On code quality (the state of repositories, tests, releases and polish), Pinterest is clearly ahead of Duolingo. On education (docs, guides and learning material for developers), Pinterest is slightly ahead of Duolingo. On community (issue response, PR reviews and discussion health), Pinterest is ahead of Duolingo. On reach (how visible the ecosystem is beyond its own repos), Duolingo is clearly ahead of Pinterest. On momentum (release cadence and how fast the ecosystem moves), Pinterest is slightly 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. Pinterest shows 30,737 stars across 98 public repos, 37 active in the last 90 days and 22 external contributors. The star gap on its own does not decide the comparison, but Pinterest's footprint is roughly 17.9x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Duolingo is the stronger read for anyone weighting reach. Pinterest looks better where code quality 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.