Customer IO vs ExpressVPN

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

Customer IO (rank #165) holds a modest lead over ExpressVPN (rank #569) on the overall Smoower ecosystem score (51 vs 35). The gap of 16 points reflects composite signals across code, docs, community and reach.

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

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. ExpressVPN shows 1,250 stars across 12 public repos, 3 active in the last 90 days and 7 external contributors.

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