Duolingo vs Personio

Duolingo and Personio (Personio is the modern all-in-one HR solution made for SMEs. Spend less time on processes and more time on people.) both appear on the Smoower Developer Ecosystem Index.

Duolingo (rank #338) holds a modest lead over Personio (rank #625) on the overall Smoower ecosystem score (43 vs 33). The gap of 10 points reflects composite signals across code, docs, community and reach.

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

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. Personio shows 122 stars across 19 public repos, 0 active in the last 90 days and 1 external contributors. The star gap on its own does not decide the comparison, but Duolingo's footprint is roughly 14.1x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Duolingo is the stronger read for anyone weighting momentum. Personio 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.