Fastmail vs Ironclad

Fastmail (Open-source software developed at Fastmail.) and Ironclad both appear on the Smoower Developer Ecosystem Index.

Fastmail (rank #430) holds a narrow lead over Ironclad (rank #455) on the overall Smoower ecosystem score (40 vs 39). The gap of 1 points reflects composite signals across code, docs, community and reach.

On code quality (the state of repositories, tests, releases and polish), Ironclad is slightly ahead of Fastmail. On education (docs, guides and learning material for developers), Ironclad is ahead of Fastmail. On reach (how visible the ecosystem is beyond its own repos), Fastmail is clearly ahead of Ironclad. On momentum (release cadence and how fast the ecosystem moves), Fastmail is clearly ahead of Ironclad.

Fastmail carries 6,316 GitHub stars across 38 public repos, with 12 repositories active in the last 90 days and 2 external contributors on record. Ironclad shows 4,723 stars across 8 public repos, 1 active in the last 90 days and 5 external contributors.

Fastmail is the stronger read for anyone weighting reach. Ironclad 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.