Fastmail vs Fivetran

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

Fivetran (rank #338) holds a narrow lead over Fastmail (rank #430) on the overall Smoower ecosystem score (43 vs 40). The gap of 3 points reflects composite signals across code, docs, community and reach.

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

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. Fivetran shows 13,433 stars across 314 public repos, 84 active in the last 90 days and 40 external contributors.

Fastmail is the stronger read for anyone weighting reach. Fivetran looks better where code quality 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.