Customer IO vs Skyscanner

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

Customer IO (rank #165) holds a narrow lead over Skyscanner (rank #209) on the overall Smoower ecosystem score (51 vs 49). The gap of 2 points reflects composite signals across code, docs, community and reach.

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

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. Skyscanner shows 8,167 stars across 86 public repos, 18 active in the last 90 days and 39 external contributors. The star gap on its own does not decide the comparison, but Skyscanner's footprint is roughly 11.9x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Customer IO is the stronger read for anyone weighting education. Skyscanner 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.