37signals vs Proton Mail

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

37signals (rank #122) holds a modest lead over Proton Mail (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), Proton Mail is slightly ahead of 37signals. On education (docs, guides and learning material for developers), 37signals is ahead of Proton Mail. On community (issue response, PR reviews and discussion health), 37signals is slightly ahead of Proton Mail. On reach (how visible the ecosystem is beyond its own repos), 37signals is ahead of Proton Mail. On momentum (release cadence and how fast the ecosystem moves), Proton Mail is slightly 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. Proton Mail shows 16,265 stars across 186 public repos, 19 active in the last 90 days and 20 external contributors. The star gap on its own does not decide the comparison, but 37signals's footprint is roughly 7.0x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

37signals is the stronger read for anyone weighting education. Proton Mail looks better where code quality 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.