ChartMogul vs Duolingo

ChartMogul (Subscription Analytics Platform) and Duolingo both appear on the Smoower Developer Ecosystem Index.

Duolingo (rank #338) holds a narrow lead over ChartMogul (rank #401) on the overall Smoower ecosystem score (43 vs 41). The gap of 2 points reflects composite signals across code, docs, community and reach.

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

ChartMogul carries 112 GitHub stars across 21 public repos, with 7 repositories active in the last 90 days and 3 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 Duolingo's footprint is roughly 15.4x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

ChartMogul is the stronger read for anyone weighting community. 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.