According to AlphaMoat, in 2026-10 the AI app Grammarly saw 588,285 downloads over the last 30 days (+28.2% MoM), with about $1.9M in app-store in-app purchase revenue — ranked #166 of 1,518 AI apps, and #2 of 27 in Writing; its top market is United States (36.9% of downloads).
What is Grammarly
Grammarly is an AI writing keyboard and document assistant that provides real-time polishing and generative rewrites across various apps.
- 01Spelling and grammar check: flag spelling, conciseness, and tone in multiple languages
- 02generative rewrite: rewrite whole paragraphs and adjust length and tone with one click
- 03voice input: automatically clean filler words and fix grammar
- 04document editor: support long-form writing, plagiarism check, and AI detection
12-Month Trend
Downloads by Country · Top 5
Popular in Writing
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Data month: 2026-10 · Downloads and in-app purchase revenue are third-party estimates (trailing 30-day window), aggregated monthly. Revenue covers App Store and Google Play in-app purchases (including subscriptions) only — excluding Android app stores in mainland China and other payment channels such as web subscriptions. See methodology.