Duolingo vs Fivetran

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

Duolingo and Fivetran sit at essentially the same overall ecosystem score (43), which is unusual and worth reading through the pillars below.

On code quality (the state of repositories, tests, releases and polish), Fivetran is ahead of Duolingo. On education (docs, guides and learning material for developers), Duolingo is slightly ahead of Fivetran. On community (issue response, PR reviews and discussion health), Fivetran is ahead of Duolingo. On reach (how visible the ecosystem is beyond its own repos), Duolingo is ahead of Fivetran. On momentum (release cadence and how fast the ecosystem moves), Fivetran 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. Fivetran shows 13,433 stars across 314 public repos, 84 active in the last 90 days and 40 external contributors. The star gap on its own does not decide the comparison, but Fivetran's footprint is roughly 7.8x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

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