Our Verdict
Grammarly wins
Grammarly wins for spelling, grammar, and style checking across the system, while Notion AI is better for drafting within Notion docs.
✓ Winner
Grammarly
Free (basic) | Pro $12/mo | Business $15/user/mo
AI-powered writing assistant for grammar, spelling, and style. Browser extension, desktop app, and API. Essential for non-native English writers. Now includes generative AI features.
Strengths
- Industry-standard grammar, spelling, and tone checking
- Extension works everywhere you type in browser and desktop
- Very low false-positive rate compared to generic LLMs
- Weekly performance and vocabulary insight reports
Could be better
- Generative writing features are relatively basic
- Premium subscription is expensive for grammar-only
- Struggles with code blocks or markdown markup
Notion AI
$10/mo add-on to Notion
AI writing assistant built into Notion. Summarize, brainstorm, draft, and edit inside your notes and docs. Best for individuals and teams already using Notion as their workspace.
Strengths
- Built directly into your active Notion workspace
- One-click summary, translation, and tone fixing of meeting notes
- Reads context from databases and connected docs
- Excellent user experience with slash commands
Could be better
- No advanced SEO keyword tools
- Requires a base Notion subscription to add on
- Cannot easily export or integrate with external websites
| Features |
Grammarly |
Notion AI |
| Rating |
4.5 / 5.0 |
4.5 / 5.0 |
| Pricing Model |
freemium |
subscription |
| Pricing Detail |
Free (basic) | Pro $12/mo | Business $15/user/mo |
$10/mo add-on to Notion |
| Category |
write |
write |
| Popularity |
0 views |
0 views |
| Official Site |
Visit Grammarly → |
Visit Notion AI → |
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