Iterable vs Zeplin

Iterable and Zeplin both appear on the Smoower Developer Ecosystem Index.

Iterable (rank #317) holds a narrow lead over Zeplin (rank #430) on the overall Smoower ecosystem score (44 vs 40). 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), Iterable is slightly ahead of Zeplin. On education (docs, guides and learning material for developers), Zeplin is ahead of Iterable. On community (issue response, PR reviews and discussion health), Iterable is slightly ahead of Zeplin. On reach (how visible the ecosystem is beyond its own repos), Zeplin is slightly ahead of Iterable. On momentum (release cadence and how fast the ecosystem moves), Iterable is clearly ahead of Zeplin.

Iterable carries 269 GitHub stars across 100 public repos, with 16 repositories active in the last 90 days and 10 external contributors on record. Zeplin shows 1,460 stars across 57 public repos, 8 active in the last 90 days and 4 external contributors. The star gap on its own does not decide the comparison, but Zeplin's footprint is roughly 5.4x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Iterable is the stronger read for anyone weighting momentum. Zeplin looks better where education 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.