AWeber vs Klaviyo

AWeber (Powerfully-simple #emailmarketing for small businesses.) and Klaviyo both appear on the Smoower Developer Ecosystem Index.

Klaviyo (rank #237) holds a modest lead over AWeber (rank #536) on the overall Smoower ecosystem score (48 vs 36). The gap of 12 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 AWeber. On education (docs, guides and learning material for developers), AWeber is ahead of Klaviyo. On community (issue response, PR reviews and discussion health), Klaviyo is clearly ahead of AWeber. On reach (how visible the ecosystem is beyond its own repos), Klaviyo is clearly ahead of AWeber. On momentum (release cadence and how fast the ecosystem moves), Klaviyo is slightly ahead of AWeber.

AWeber carries 503 GitHub stars across 22 public repos, with 0 repositories active in the last 90 days and 0 external contributors on record. Klaviyo shows 573 stars across 117 public repos, 23 active in the last 90 days and 17 external contributors.

AWeber 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.