Klaviyo vs Zapier

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

Zapier (rank #27) holds a modest lead over Klaviyo (rank #237) on the overall Smoower ecosystem score (64 vs 48). The gap of 16 points reflects composite signals across code, docs, community and reach.

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

Klaviyo carries 573 GitHub stars across 117 public repos, with 23 repositories active in the last 90 days and 17 external contributors on record. Zapier shows 6,768 stars across 296 public repos, 13 active in the last 90 days and 23 external contributors. The star gap on its own does not decide the comparison, but Zapier's footprint is roughly 11.8x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

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