Customer IO vs ReadMe

Customer IO and ReadMe (Interactive developer hubs that help users succeed with your APIs 🦉) both appear on the Smoower Developer Ecosystem Index.

Customer IO (rank #165) holds a narrow lead over ReadMe (rank #257) on the overall Smoower ecosystem score (51 vs 47). The gap of 4 points reflects composite signals across code, docs, community and reach.

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

Customer IO carries 684 GitHub stars across 107 public repos, with 42 repositories active in the last 90 days and 26 external contributors on record. ReadMe shows 1,824 stars across 106 public repos, 26 active in the last 90 days and 21 external contributors.

Customer IO is the stronger read for anyone weighting reach. ReadMe looks better where code quality 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.