Grammarly
A writing assistant that checks grammar, clarity and tone in your browser, email, documents and phone keyboard, with AI rewriting and generation. By Superhuman (Grammarly).
Price
$12/mo
Pro plan. Free plan.
Works on
Web · iPhone · Android · Desktop22+ languages
AI League
91 pts · #1 in writing for work
See the writing for work standingsFree plan and price
Free plan. Free plan: basic error detection, tone detection and 100 AI prompts a month.
$12 a month billed monthly: full-sentence rewrites, tone adjustment, plagiarism and AI detection, 2,000 AI prompts a month.
Good for / not for
- Emails, reports and everyday work writing
- Non-native English writers
- Long-form marketing campaigns
Pros and cons
- Works in almost every app and website
- Recurring free plan
- Rated 4.7 on the App Store (225,000 ratings)
- Rewrites and tone changes need Pro
- Suggestions can flatten your personal style
Alternatives
How Grammarly scores
| Score | 0–10 | Basis |
|---|---|---|
| Quality | 8.5 | App Store rating 4.7/5. Average App Store (US) user rating from 225,000 ratings. |
| Ease | 10.0 | Checklist: Web · iPhone · Android · Desktop; plain-language prompt yes; start without paying yes. |
| Free plan | 9.0 | Free plan: basic error detection, tone detection and 100 AI prompts a month. |
| Value | 10.0 | Entry price $12 a month (monthly billing), compared with the cheapest app in the task. |
| Languages | 8.0 | Writing support in over 20 languages (Grammarly blog). |
| Points | 91 | (Quality×30% + Ease×20% + Free plan×15% + Value×20% + Languages×15%) × 10 |
Sources
Checked Sep 28, 2026. Prices and plans change often; check the official site before you buy.
- Free plan: grammarly.com/plans
- Price: grammarly.com/plans
- Platforms: apps.apple.com/us/app/grammarly-ai-keyboard-voice/id1158877342 · grammarly.com/mobile/ios
- Languages: grammarly.com/blog/product/multilingual-support-in-additional-languages
- Quality score: apps.apple.com/us/app/grammarly-ai-keyboard-voice/id1158877342
- Ease score: grammarly.com/plans
- Value score: grammarly.com/plans