Fastmail vs Stamped.io

Fastmail (Open-source software developed at Fastmail.) and Stamped.io (Increase brand loyalty. Accelerate brand growth. Stamped.io empowers you to grow your business by enhancing user engagement, increasing revenue, and improving c) both appear on the Smoower Developer Ecosystem Index.

Fastmail (rank #430) holds a narrow lead over Stamped.io (rank #662) on the overall Smoower ecosystem score (40 vs 32). The gap of 8 points reflects composite signals across code, docs, community and reach.

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

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. Stamped.io shows 4 stars across 3 public repos, 0 active in the last 90 days and 0 external contributors. The star gap on its own does not decide the comparison, but Fastmail's footprint is roughly 1579.0x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Fastmail is the stronger read for anyone weighting momentum. Stamped.io 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.