Millions of users rely on Grammarly's AI-powered products to make their messages, documents, and social media posts clear, mistake-free, and impactful.
Affinity vs Grammarly
Developer ecosystem comparison across GitHub activity, SDKs, documentation, community, reach and momentum.
Affinity and Grammarly (Millions of users rely on Grammarly's AI-powered products to make their messages, documents, and social media posts clear, mistake-free, and impactful.) both appear on the Smoower Developer Ecosystem Index.
Affinity (rank #536) holds a narrow lead over Grammarly (rank #602) on the overall Smoower ecosystem score (36 vs 34). The gap of 2 points reflects composite signals across code, docs, community and reach.
On code quality (the state of repositories, tests, releases and polish), Grammarly is slightly ahead of Affinity. On education (docs, guides and learning material for developers), Grammarly is ahead of Affinity. On community (issue response, PR reviews and discussion health), Grammarly is ahead of Affinity. On reach (how visible the ecosystem is beyond its own repos), Affinity is clearly ahead of Grammarly. On momentum (release cadence and how fast the ecosystem moves), Grammarly is clearly ahead of Affinity.
Affinity carries 4 GitHub stars across 40 public repos, with 1 repositories active in the last 90 days and 2 external contributors on record. Grammarly shows 4,355 stars across 23 public repos, 0 active in the last 90 days and 0 external contributors. The star gap on its own does not decide the comparison, but Grammarly's footprint is roughly 1088.8x larger, which usually shows up in downstream signals like inbound issues and third party integrations.
Affinity is the stronger read for anyone weighting reach. Grammarly 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.
Side-by-side metrics
| Metric | Affinity | Grammarly |
|---|---|---|
| Ranking | ||
| Overall rank | #536 | #602 |
| Pillars | ||
| Overall | 36 | 34 |
| Code | 41 | 43 |
| Education | 42 | 55 |
| Community | 11 | 27 |
| Reach | 63 | 37 |
| Momentum | 2 | 28 |
| Builder experience | 0 | 0 |
| Signals | ||
| Stars | 4 | 4,355 |
| Forks | 1 | 468 |
| Public repos | 40 | 23 |
| Active repos (90d) | 1 | 0 |
| External contributors | 2 | 0 |
| Avg polish | 26 | 45 |
| Avg AI-readiness | 44 | 30 |