Grammarly
AI writing · grammarly.com
Students and professional writers use Grammarly, a writing assistant, to check spelling and grammar, adjust tone and rewrite sentences. It also detects plagiarism and AI-generated text on paid plans, and runs in browsers, desktop apps, mobile apps and Microsoft Office or Google Docs.
Ratings
About the Tools.us.org score
A weighted average of the published ratings below, shown out of 10 in the header above.
Based on 2 sources, 493K ratings.
How we calculate this
Each source counts by its number of ratings or reviews, capped at 1,000. Score = 2 × sum(rating × weight) ÷ sum(weights), rounded to one decimal. Inputs are published ratings out of 5; a missing source is left out, never counted as zero. A composite of published scores, not our own test.
Included: App Store 4.7 (weight 1,000), Google Play 4.3 (weight 1,000).
What users say
Summary of 500 App Store reviews, 6 Aug 2026 to 3 Nov 2026 (counted from the reviews)
Reviewers who like the app mention enjoyment of the app and recommendations to others, help with everyday questions and tasks and use for writing, images and creative work. Reviewers who complain mention subscription cost and paywalled features, bugs, crashes and features that stop working and the latest update and the changes it brought.
Top praises
- Enjoyment of the app and recommendations to othersmentioned in 111 of 500 reviews
- Help with everyday questions and tasksmentioned in 64 of 500 reviews
- Use for writing, images and creative workmentioned in 40 of 500 reviews
Top complaints
- Subscription cost and paywalled featuresmentioned in 36 of 500 reviews
- Bugs, crashes and features that stop workingmentioned in 15 of 500 reviews
- The latest update and the changes it broughtmentioned in 9 of 500 reviews
Best suited to: People who value enjoyment of the app and recommendations to others.
How it is counted: fixed keyword rules read each review's text, and no model writes the claims. A review counts once per theme and can mention several. Praise is counted in reviews rated 4 or 5 stars, complaints in reviews rated 1 or 2 stars. The reviews are the 500 that Apple's public review feed returned; the feed returns a window of reviews, not all of them.
Updated 5 Nov 2026. Supporting reviews: App Store
Facts at a glance
| Fact | Value | Source |
|---|---|---|
| Launched | 2009. Company founded in 2009, per its About page | grammarly.com/about, checked 5 Nov 2026 |
| Free plan | Freemium: a free plan exists | grammarly.com/plans, checked 5 Nov 2026 |
| Free trial | Yes | grammarly.com/plans, checked 5 Nov 2026 |
| Starting price | $12/seat/mo · billed yearly | grammarly.com/pro, checked 5 Nov 2026 |
| Platforms | Windows, macOS, iOS, iPadOS, Android, Chrome extension, Safari extension, Firefox extension, Edge extension | grammarly.com/plans, checked 5 Nov 2026 |
Pricing & plans
Pricing
Free plan · paid from $12/seat/mo
USD, billed yearly
Model
Freemium
Free plan available
Trial
Yes
Price tiers
| Plan | Per month | Usage, as the vendor states it |
|---|---|---|
| Free | Free | Spelling and tone checks with 100 AI prompts a month |
| Pro | $30/mo | Priced per member; $12 per month applies only when billed annually; adds full-sentence rewrites, tone adjustment and 2,000 AI prompts |
| Enterprise | Contact sales; adds dedicated support, custom roles, data loss prevention and BYOK encryption |
Prices are the vendor's list prices in USD.
100 AI prompts per month
Full-sentence rewrites are Pro only
Tone adjustment is Pro only
Plagiarism and AI text detection are Pro only
Source: grammarly.com/pro, checked 5 Nov 2026
Features & platforms
Spelling and grammar checks
Tone detection and adjustment
Full-sentence rewrites
Plagiarism detection
AI-generated text detection
Text generation from AI prompts
- Windows
- macOS
- iOS
- iPadOS
- Android
- Chrome extension
- Safari extension
- Firefox extension
- Edge extension
Sources: grammarly.com/plans, checked 5 Nov 2026
Alternatives
Free plan at $0 paraphrases up to 125 words in 2 modes and includes a limited AI Detector.
Unlimited AI sentence paraphrasing and checks of up to 150,000 characters per text field come with Premium.
Premium adds 25+ writing analysis reports and a custom style guide, with chapter critiques aimed at fiction writers.
Sources: quillbot.com/premium, languagetool.org/premium, prowritingaid.com/pricing
Data & privacy
The company says it earns money from paid products, not by selling or monetizing user content
Users decide through account training controls whether their content trains the company's AI models
Source: grammarly.com/privacy-policy, policy last updated July 6, 2026, checked 5 Nov 2026. These points restate the policy and are not legal advice.
Also in AI writing on Tools.us.org: Copy.ai, DeepL, Frase, Hemingway Editor, HyperWrite, Jasper, Lex, Paragraph AI, QuillBot, Sudowrite, Wordtune, Writesonic
Sources and dates
- App Store: checked 6 Nov 2026, listing
- Google Play: checked 5 Nov 2026, listing
- Plan facts: grammarly.com/pro, checked 5 Nov 2026
- Official site: grammarly.com
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