Proton Mail vs Revolut

Proton Mail and Revolut (Revolut Open Source) both appear on the Smoower Developer Ecosystem Index.

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

Proton Mail carries 16,265 GitHub stars across 186 public repos, with 19 repositories active in the last 90 days and 20 external contributors on record. Revolut shows 260 stars across 35 public repos, 5 active in the last 90 days and 1 external contributors. The star gap on its own does not decide the comparison, but Proton Mail's footprint is roughly 62.6x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Proton Mail is the stronger read for anyone weighting momentum. Revolut 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.