Affirm vs Amplitude

Affirm and Amplitude both appear on the Smoower Developer Ecosystem Index.

Amplitude (rank #93) holds a modest lead over Affirm (rank #485) on the overall Smoower ecosystem score (56 vs 38). The gap of 18 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 Affirm. On education (docs, guides and learning material for developers), Affirm is clearly ahead of Amplitude. On community (issue response, PR reviews and discussion health), Amplitude is slightly ahead of Affirm. On reach (how visible the ecosystem is beyond its own repos), Affirm is ahead of Amplitude. On momentum (release cadence and how fast the ecosystem moves), Amplitude is clearly ahead of Affirm.

Affirm carries 207 GitHub stars across 116 public repos, with 9 repositories active in the last 90 days and 4 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 15.3x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Affirm 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.