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Grammarly
AI WritingAI writing assistant for clear, effective communication
4.5
by Grammarly IncStarting Price
Free
Free Tier
Yes
API
Available
Platforms
web, chrome-extension, desktop, ios, android
Overview
Grammarly is the most widely used AI writing assistant, offering real-time grammar, spelling, tone, and clarity corrections. Its generative AI features help rewrite, brainstorm, and compose text across apps. Available as a browser extension, desktop app, and keyboard.
Pricing Plans
Free
Free
- Basic writing suggestions
- Tone detection
- 100 AI prompts/mo
- 1 user
Popular
Pro
$12/mo
$12/mo billed yearly
- Full writing feedback
- 1,000 AI prompts/mo
- Plagiarism detection
- Style guide
Business
$15/mo
$15/mo billed yearly
- Everything in Pro
- Brand tones
- Admin panel
- SAML SSO
- Analytics
Enterprise
Contact Sales
- Unlimited AI prompts
- Custom style guides
- Dedicated CSM
- Advanced security
API Pricing: Enterprise plan — contact sales
Pros & Cons
Pros
- Works everywhere — browser, desktop, mobile, email clients
- Free tier is genuinely useful for basic corrections
- Excellent tone and clarity suggestions
- Most affordable paid AI writing tool at $12/mo
Cons
- AI generative features limited by prompt count
- Can be overly aggressive with suggestions
- Some integrations require desktop app installation
- Enterprise API access only — no developer tier
Detailed Ratings
Overall
4.5
Ease of Use
4.8
Value for Money
4.3
Output Quality
4.4