Grammarly
✓ VerifiedAI-powered writing assistant that checks grammar, tone, clarity, and style across virtually any platform you write on.
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✓ Free plan available
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Grammarly is a widely used AI writing tool that offers real-time grammar, spelling, clarity, and tone suggestions as you type, integrating with browsers, desktop apps, and popular platforms. Its Pro and Enterprise tiers add sentence rewrites, brand style guides, generative AI prompts, and team collaboration features. Trusted by over 40 million users and 50,000 organizations, it covers everything from casual emails to professional business writing.
Best for: Professionals, students, and teams who write frequently and want real-time grammar, clarity, and tone assistance across multiple platforms
Key Features
- Real-time grammar, spelling, and punctuation checking
- Tone detection and adjustment suggestions
- Full sentence and paragraph rewrites
- Generative AI text generation (100 prompts free, 2,000 on Pro)
- Plagiarism checker
- AI detector agent
- AI humanizer agent
- Brand style guide enforcement (Pro/Enterprise)
- Browser extension, desktop app, and mobile keyboard
- Data loss prevention and confidential mode (Enterprise)
- Reader reactions and audience feedback simulation
- Citation generator and resume builder tools
Pros
- Seamless integration across browsers, desktop, and mobile means it works wherever you write
- Free tier is genuinely useful for basic grammar and spelling correction
- Enterprise ROI is well-documented — organizations report significant time and cost savings
- Strong data privacy stance: does not sell or use content for ad targeting or third-party model training
Cons
- Pro plan ($12/mo annual, $30/mo monthly) is expensive compared to newer AI writing competitors offering more generative features at lower prices
- Free tier caps AI prompts at just 100/month, which runs out quickly for regular users
- Suggestions can be overly prescriptive, sometimes flattening natural voice or regional writing styles
- Plagiarism checker and some advanced features require Pro, while dedicated tools like Turnitin offer deeper academic plagiarism detection
- Generative AI quality lags behind dedicated LLM tools like ChatGPT or Claude for long-form content creation
Pricing Details
| Pricing type | Freemium |
| Starting at | Free |
| Free plan | ✅ Available |
Plan Breakdown
Free
$0/mo
Pro
$12/mo (billed annually) or $30/mo
Enterprise
Custom
See Current Pricing →
Pricing may change — always verify on the official site.
- Professionals proofreading emails, reports, and business documents before sending
- Students improving essay grammar, clarity, and citation quality
- Marketing and customer support teams enforcing consistent brand voice at scale
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| Rating | ★★★★☆ 4.2 | ★★★★½ 4.7 | ★★★★½ 4.3 | ★★★★½ 4.3 |
| Trust Score | 86/100 | 85/100 | 83/100 | 80/100 |
| Pricing |
Free
$0/mo
Pro
$12/mo (billed annually) or $30/mo
Enterprise
Custom | Freemium Free |
Free
$0/mo
Premium
$15/mo
Team
$19/user/mo
Business
$29/user/mo |
Lite
$0/mo
Starter
$8/mo
Business
$12/mo
Enterprise
Custom |
| Data updated | 3 days ago | 10 days ago | 2 days ago | 2 days ago |
| Try → | Compare → | Compare → | Compare → |
About Trust Score
Trust Score = (Rating / 5 × 60) + (Popularity / 100 × 40). A score of 100 means the tool has a perfect rating and maximum market popularity. Scores are updated automatically by our AI agent.
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