Klaviyo vs Zuora

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

Klaviyo (rank #237) holds a modest lead over Zuora (rank #569) on the overall Smoower ecosystem score (48 vs 35). The gap of 13 points reflects composite signals across code, docs, community and reach.

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

Klaviyo carries 573 GitHub stars across 117 public repos, with 23 repositories active in the last 90 days and 17 external contributors on record. Zuora shows 10 stars across 21 public repos, 1 active in the last 90 days and 0 external contributors. The star gap on its own does not decide the comparison, but Klaviyo's footprint is roughly 57.3x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Klaviyo is the stronger read for anyone weighting momentum. Zuora looks better where education 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.