37signals vs Buffer

37signals (HEY! It's in Basecamp!) and Buffer (Helping people build their business on social media since 2011) both appear on the Smoower Developer Ecosystem Index.

37signals (rank #122) holds a modest lead over Buffer (rank #455) on the overall Smoower ecosystem score (54 vs 39). The gap of 15 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 Buffer. On education (docs, guides and learning material for developers), Buffer is slightly ahead of 37signals. On community (issue response, PR reviews and discussion health), 37signals is clearly ahead of Buffer. On reach (how visible the ecosystem is beyond its own repos), 37signals is clearly ahead of Buffer. On momentum (release cadence and how fast the ecosystem moves), 37signals is clearly ahead of Buffer.

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. Buffer shows 11,181 stars across 196 public repos, 4 active in the last 90 days and 0 external contributors. The star gap on its own does not decide the comparison, but 37signals's footprint is roughly 10.2x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

37signals is the stronger read for anyone weighting momentum. Buffer looks better where education 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.