Adyen vs Customer IO

Adyen and Customer IO both appear on the Smoower Developer Ecosystem Index.

Adyen and Customer IO sit at essentially the same overall ecosystem score (51), which is unusual and worth reading through the pillars below.

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

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. Customer IO shows 684 stars across 107 public repos, 42 active in the last 90 days and 26 external contributors. The star gap on its own does not decide the comparison, but Adyen's footprint is roughly 3.9x 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. Customer IO 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.