Adyen vs Sezzle

Adyen and Sezzle (Financially empowering the next generation) both appear on the Smoower Developer Ecosystem Index.

Adyen (rank #165) holds a modest lead over Sezzle (rank #569) on the overall Smoower ecosystem score (51 vs 35). 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), Adyen is clearly ahead of Sezzle. On education (docs, guides and learning material for developers), Sezzle is clearly ahead of Adyen. On community (issue response, PR reviews and discussion health), Adyen is clearly ahead of Sezzle. On reach (how visible the ecosystem is beyond its own repos), Sezzle is clearly ahead of Adyen. On momentum (release cadence and how fast the ecosystem moves), Adyen is clearly ahead of Sezzle.

Adyen carries 2,684 GitHub stars across 65 public repos, with 49 repositories active in the last 90 days and 39 external contributors on record. Sezzle shows 73 stars across 34 public repos, 7 active in the last 90 days and 0 external contributors. The star gap on its own does not decide the comparison, but Adyen's footprint is roughly 36.8x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Adyen is the stronger read for anyone weighting code quality. Sezzle 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.