AI assistants most often recommend Grammarly for grammar checkers in 🇰🇷 South Korea (한국어), naming it in 100% of the buyer questions we tested, followed by Google Docs and Naver Papago. We asked an AI model the questions buyers ask about grammar checkers and tallied which brands it named most — "share of voice" in AI answers, who AI recommends when no human is watching.
| # | Brand | AI share of voice |
|---|---|---|
| 1 | Grammarly | 6/6 (100%) |
| 2 | Google Docs | 5/6 (83%) |
| 3 | Naver Papago | 5/6 (83%) |
| 4 | Ginger | 1/6 (17%) |
| 5 | Notion | 1/6 (17%) |
Method: 6 representative buyer questions via a large language model, 🇰🇷 South Korea (한국어). Updated 6/27/2026. A proxy for how AI assistants describe this category.
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