ChartMogul vs Fastmail

ChartMogul (Subscription Analytics Platform) and Fastmail (Open-source software developed at Fastmail.) both appear on the Smoower Developer Ecosystem Index.

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

ChartMogul carries 112 GitHub stars across 21 public repos, with 7 repositories active in the last 90 days and 3 external contributors on record. Fastmail shows 6,316 stars across 38 public repos, 12 active in the last 90 days and 2 external contributors. The star gap on its own does not decide the comparison, but Fastmail's footprint is roughly 56.4x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

ChartMogul is the stronger read for anyone weighting community. Fastmail 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.