Ahrefs vs 37signals

Ahrefs (BTW we use OCaml) and 37signals (HEY! It's in Basecamp!) both appear on the Smoower Developer Ecosystem Index.

37signals (rank #122) holds a modest lead over Ahrefs (rank #401) on the overall Smoower ecosystem score (54 vs 41). The gap of 13 points reflects composite signals across code, docs, community and reach.

On code quality (the state of repositories, tests, releases and polish), 37signals is ahead of Ahrefs. On education (docs, guides and learning material for developers), Ahrefs is slightly ahead of 37signals. On community (issue response, PR reviews and discussion health), 37signals is ahead of Ahrefs. On reach (how visible the ecosystem is beyond its own repos), 37signals is clearly ahead of Ahrefs. On momentum (release cadence and how fast the ecosystem moves), Ahrefs is ahead of 37signals.

Ahrefs carries 1,303 GitHub stars across 171 public repos, with 28 repositories active in the last 90 days and 7 external contributors on record. 37signals shows 113,857 stars across 236 public repos, 48 active in the last 90 days and 298 external contributors. The star gap on its own does not decide the comparison, but 37signals's footprint is roughly 87.4x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Ahrefs is the stronger read for anyone weighting momentum. 37signals 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.