beehiiv vs Customer IO

beehiiv (Next-gen newsletter platform on a mission to help creators and businesses seamlessly create, monetize, and grow their audiences.) and Customer IO both appear on the Smoower Developer Ecosystem Index.

Customer IO (rank #165) holds a modest lead over beehiiv (rank #510) on the overall Smoower ecosystem score (51 vs 37). The gap of 14 points reflects composite signals across code, docs, community and reach.

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

beehiiv carries 33 GitHub stars across 13 public repos, with 4 repositories active in the last 90 days and 3 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 Customer IO's footprint is roughly 20.7x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

beehiiv is the stronger read for anyone weighting reach. Customer IO 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.