Customer IO vs Iterable

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

Customer IO (rank #165) holds a narrow lead over Iterable (rank #317) on the overall Smoower ecosystem score (51 vs 44). The gap of 7 points reflects composite signals across code, docs, community and reach.

On code quality (the state of repositories, tests, releases and polish), Customer IO is slightly ahead of Iterable. On education (docs, guides and learning material for developers), Customer IO is clearly ahead of Iterable. On reach (how visible the ecosystem is beyond its own repos), Customer IO is clearly ahead of Iterable. On momentum (release cadence and how fast the ecosystem moves), Iterable is 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. Iterable shows 269 stars across 100 public repos, 16 active in the last 90 days and 10 external contributors.

Customer IO is the stronger read for anyone weighting reach. Iterable looks better where momentum 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.