37signals vs Stream

37signals (HEY! It's in Basecamp!) and Stream (Build scalable in-app chat, feeds, and live video with AI moderation capabilities in hours, not weeks.) both appear on the Smoower Developer Ecosystem Index.

37signals (rank #122) holds a modest lead over Stream (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), Stream is slightly ahead of 37signals. On community (issue response, PR reviews and discussion health), 37signals is slightly ahead of Stream. On reach (how visible the ecosystem is beyond its own repos), 37signals is clearly ahead of Stream. On momentum (release cadence and how fast the ecosystem moves), Stream is clearly 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. Stream shows 35,664 stars across 487 public repos, 84 active in the last 90 days and 44 external contributors. The star gap on its own does not decide the comparison, but 37signals's footprint is roughly 3.2x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

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