Grammarly vs Kustomer

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.) and Kustomer both appear on the Smoower Developer Ecosystem Index.

Grammarly and Kustomer sit at essentially the same overall ecosystem score (34), which is unusual and worth reading through the pillars below.

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

Grammarly carries 4,356 GitHub stars across 23 public repos, with 0 repositories active in the last 90 days and 0 external contributors on record. Kustomer shows 15 stars across 19 public repos, 4 active in the last 90 days and 3 external contributors. The star gap on its own does not decide the comparison, but Grammarly's footprint is roughly 290.4x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Grammarly is the stronger read for anyone weighting momentum. Kustomer 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.