Feature Comparison
| Feature | Grammarly | Sudowrite |
|---|---|---|
| API access | ✓ | ✗ |
| Brand voice | ✓ | ✓ |
| Browser extension | ✓ | ✗ |
| Free plan | ✓ | ✗ |
| Long-form content | ✗ | ✓ |
| Multi-language | ✗ | ✗ |
| Plagiarism checker | ✓ | ✗ |
| SEO optimization | ✗ | ✗ |
| Short-form copy | ✗ | ✗ |
| Team collaboration | ✓ | ✗ |
| Templates | ✗ | ✗ |
| Tone adjustment | ✓ | ✓ |
Grammarly Pricing
Free
100 AI prompts/month, basic grammar/spelling/punctuation checks, no plagiarism detection or advanced rewrites
Free
Pro
2,000 AI prompts/member/month, up to 149 seats, full-sentence rewrites, plagiarism detection, tone adjustment (Priority support)
$30.00/mo
Enterprise
Unlimited AI prompts, enterprise security (SSO, SCIM, DLP), team analytics, style guides, brand tones, dedicated support (custom pricing, contact sales)
Custom
Sudowrite Pricing
Hobby & Student
$10.00/mo
Professional
$22.00/mo
Max
$44.00/mo
Grammarly
Pros
- Instant grammar and spelling corrections save time on proofreading
- Improves clarity, tone, and professionalism in business communication
- Seamless integrations with Google Docs, Slack, email clients, and more
- Brand voice and style guide features ensure team consistency
- High accuracy in suggestions with explanations for learning
Cons
- Suggestions can be overly strict or change intended tone/voice
- Expensive for small teams or individuals compared to free version
- Occasional incorrect or irrelevant corrections, especially in creative/casual writing
- Performance lag with very long documents or multiple tabs
- Aggressive upgrade prompts and limited free tier features
Sudowrite
Pros
- Overcomes writer's block
- Fiction-specific AI excels at creative tasks
- Intuitive interface with strong community
- Generous credits and rollover on higher plans
Cons
- Primarily for fiction, less for non-fiction
- Credit-based limits usage
- Higher tiers pricey for casual users
The Verdict
Grammarly takes this one with a DuelStack Score of 6.8/10 vs 6.4/10. It particularly excels at instant grammar and spelling corrections save time on proofreading. That said, Sudowrite is the better pick if you need its ability to overcomes writer's block.