Klaviyo vs Starling Bank

Klaviyo and Starling Bank both appear on the Smoower Developer Ecosystem Index.

Klaviyo (rank #237) holds a modest lead over Starling Bank (rank #625) on the overall Smoower ecosystem score (48 vs 33). The gap of 15 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 Starling Bank. On education (docs, guides and learning material for developers), Klaviyo is slightly ahead of Starling Bank. On community (issue response, PR reviews and discussion health), Klaviyo is clearly ahead of Starling Bank. On reach (how visible the ecosystem is beyond its own repos), Starling Bank is clearly ahead of Klaviyo. On momentum (release cadence and how fast the ecosystem moves), Starling Bank 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. Starling Bank shows 195 stars across 3 public repos, 3 active in the last 90 days and 0 external contributors.

Klaviyo is the stronger read for anyone weighting community. Starling Bank 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.