37signals vs Iterable

37signals (HEY! It's in Basecamp!) and Iterable both appear on the Smoower Developer Ecosystem Index.

37signals (rank #122) holds a modest lead over Iterable (rank #317) on the overall Smoower ecosystem score (54 vs 44). 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), 37signals is slightly ahead of Iterable. On education (docs, guides and learning material for developers), Iterable is slightly ahead of 37signals. On community (issue response, PR reviews and discussion health), 37signals is ahead of Iterable. On reach (how visible the ecosystem is beyond its own repos), 37signals is clearly ahead of Iterable. On momentum (release cadence and how fast the ecosystem moves), Iterable is ahead of 37signals.

37signals carries 113,857 GitHub stars across 236 public repos, with 48 repositories active in the last 90 days and 298 external contributors on record. Iterable shows 269 stars across 100 public repos, 16 active in the last 90 days and 10 external contributors. The star gap on its own does not decide the comparison, but 37signals's footprint is roughly 423.3x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

37signals is the stronger read for anyone weighting reach. Iterable 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.