Close vs Proton Mail

Close (The inside sales CRM of choice for SMBs) and Proton Mail both appear on the Smoower Developer Ecosystem Index.

Close (rank #298) holds a narrow lead over Proton Mail (rank #401) on the overall Smoower ecosystem score (45 vs 41). The gap of 4 points reflects composite signals across code, docs, community and reach.

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

Close carries 3,871 GitHub stars across 190 public repos, with 25 repositories active in the last 90 days and 10 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 Proton Mail's footprint is roughly 4.2x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Close is the stronger read for anyone weighting education. Proton Mail looks better where reach 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.