Gusto vs Klaviyo

Gusto and Klaviyo both appear on the Smoower Developer Ecosystem Index.

Klaviyo (rank #237) holds a narrow lead over Gusto (rank #338) on the overall Smoower ecosystem score (48 vs 43). The gap of 5 points reflects composite signals across code, docs, community and reach.

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

Gusto carries 781 GitHub stars across 148 public repos, with 20 repositories active in the last 90 days and 6 external contributors on record. Klaviyo shows 573 stars across 117 public repos, 23 active in the last 90 days and 17 external contributors.

Gusto is the stronger read for anyone weighting education. 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.