Culture Amp vs Proton Mail

Culture Amp (The employee feedback platform) and Proton Mail both appear on the Smoower Developer Ecosystem Index.

Proton Mail (rank #401) holds a modest lead over Culture Amp (rank #693) on the overall Smoower ecosystem score (41 vs 31). 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), Proton Mail is ahead of Culture Amp. On education (docs, guides and learning material for developers), Culture Amp is slightly ahead of Proton Mail. On community (issue response, PR reviews and discussion health), Proton Mail is clearly ahead of Culture Amp. On reach (how visible the ecosystem is beyond its own repos), Proton Mail is clearly ahead of Culture Amp. On momentum (release cadence and how fast the ecosystem moves), Proton Mail is clearly ahead of Culture Amp.

Culture Amp carries 1,202 GitHub stars across 179 public repos, with 17 repositories active in the last 90 days and 18 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 13.5x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Culture Amp 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.