37signals vs Mollie

37signals (HEY! It's in Basecamp!) and Mollie (Building a payments and banking stack for makers.) both appear on the Smoower Developer Ecosystem Index.

37signals and Mollie sit at essentially the same overall ecosystem score (54), which is unusual and worth reading through the pillars below.

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

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. Mollie shows 2,571 stars across 85 public repos, 30 active in the last 90 days and 26 external contributors. The star gap on its own does not decide the comparison, but 37signals's footprint is roughly 44.3x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

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