ChartMogul vs Klaviyo

ChartMogul (Subscription Analytics Platform) and Klaviyo both appear on the Smoower Developer Ecosystem Index.

Klaviyo (rank #237) holds a narrow lead over ChartMogul (rank #401) on the overall Smoower ecosystem score (48 vs 41). The gap of 7 points reflects composite signals across code, docs, community and reach.

On code quality (the state of repositories, tests, releases and polish), Klaviyo is slightly ahead of ChartMogul. On education (docs, guides and learning material for developers), Klaviyo is slightly ahead of ChartMogul. On community (issue response, PR reviews and discussion health), ChartMogul is slightly ahead of Klaviyo. On reach (how visible the ecosystem is beyond its own repos), Klaviyo is clearly ahead of ChartMogul. On momentum (release cadence and how fast the ecosystem moves), Klaviyo is slightly 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. Klaviyo shows 573 stars across 117 public repos, 23 active in the last 90 days and 17 external contributors. The star gap on its own does not decide the comparison, but Klaviyo's footprint is roughly 5.1x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

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