15Five vs Zapier

15Five and Zapier both appear on the Smoower Developer Ecosystem Index.

Zapier (rank #27) holds a meaningful lead over 15Five (rank #693) on the overall Smoower ecosystem score (64 vs 31). The gap of 33 points reflects composite signals across code, docs, community and reach.

On code quality (the state of repositories, tests, releases and polish), Zapier is clearly ahead of 15Five. On education (docs, guides and learning material for developers), Zapier is clearly ahead of 15Five. On community (issue response, PR reviews and discussion health), Zapier is slightly ahead of 15Five. On reach (how visible the ecosystem is beyond its own repos), Zapier is clearly ahead of 15Five. On momentum (release cadence and how fast the ecosystem moves), Zapier is ahead of 15Five.

15Five carries 141 GitHub stars across 29 public repos, with 2 repositories active in the last 90 days and 5 external contributors on record. Zapier shows 6,768 stars across 296 public repos, 13 active in the last 90 days and 23 external contributors. The star gap on its own does not decide the comparison, but Zapier's footprint is roughly 48.0x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

15Five is worth a look for teams already invested in its stack. Zapier 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.