Proton Mail vs Zscaler, Inc.

Proton Mail and Zscaler, Inc. both appear on the Smoower Developer Ecosystem Index.

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

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. Zscaler, Inc. shows 337 stars across 58 public repos, 33 active in the last 90 days and 11 external contributors. The star gap on its own does not decide the comparison, but Proton Mail's footprint is roughly 48.3x 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. Zscaler, Inc. 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.