Duolingo vs Kandji

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

Duolingo (rank #338) holds a modest lead over Kandji (rank #728) on the overall Smoower ecosystem score (43 vs 30). The gap of 13 points reflects composite signals across code, docs, community and reach.

On education (docs, guides and learning material for developers), Duolingo is slightly ahead of Kandji. On community (issue response, PR reviews and discussion health), Duolingo is ahead of Kandji. On reach (how visible the ecosystem is beyond its own repos), Duolingo is ahead of Kandji. On momentum (release cadence and how fast the ecosystem moves), Kandji 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. Kandji shows 387 stars across 7 public repos, 6 active in the last 90 days and 3 external contributors. The star gap on its own does not decide the comparison, but Duolingo's footprint is roughly 4.4x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

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