Fastmail vs Sumo Logic, Inc.

Fastmail (Open-source software developed at Fastmail.) and Sumo Logic, Inc. both appear on the Smoower Developer Ecosystem Index.

Sumo Logic, Inc. (rank #401) holds a narrow lead over Fastmail (rank #430) on the overall Smoower ecosystem score (41 vs 40). 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), Sumo Logic, Inc. is ahead of Fastmail. On education (docs, guides and learning material for developers), Fastmail is ahead of Sumo Logic, Inc.. On community (issue response, PR reviews and discussion health), Sumo Logic, Inc. is ahead of Fastmail. On reach (how visible the ecosystem is beyond its own repos), Fastmail is clearly ahead of Sumo Logic, Inc.. On momentum (release cadence and how fast the ecosystem moves), Fastmail is slightly ahead of Sumo Logic, Inc..

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. Sumo Logic, Inc. shows 1,842 stars across 107 public repos, 27 active in the last 90 days and 14 external contributors. The star gap on its own does not decide the comparison, but Fastmail's footprint is roughly 3.4x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Fastmail is the stronger read for anyone weighting reach. Sumo Logic, Inc. 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.