15Five vs Amplitude

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

Amplitude (rank #93) holds a meaningful lead over 15Five (rank #693) on the overall Smoower ecosystem score (56 vs 31). The gap of 25 points reflects composite signals across code, docs, community and reach.

On code quality (the state of repositories, tests, releases and polish), Amplitude is clearly ahead of 15Five. On education (docs, guides and learning material for developers), 15Five is slightly ahead of Amplitude. On community (issue response, PR reviews and discussion health), Amplitude is ahead of 15Five. On reach (how visible the ecosystem is beyond its own repos), Amplitude is ahead of 15Five. On momentum (release cadence and how fast the ecosystem moves), Amplitude is clearly 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. Amplitude shows 3,167 stars across 151 public repos, 39 active in the last 90 days and 23 external contributors. The star gap on its own does not decide the comparison, but Amplitude's footprint is roughly 22.5x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

15Five is the stronger read for anyone weighting education. Amplitude 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.