Grammarly Business
Notion AI
| Feature | ||
|---|---|---|
| Pricing | From $15/mo | From $10/mo |
| Free Plan | ✗ No | ✗ No |
| Rating | 4.5 / 5 | 4.2 / 5 |
| Best For | enterprise, marketing-teams, content-creators, agencies | notion-users, teams, knowledge-workers, project-managers |
| Founded | 2009 | 2023 |
| Grammar Check | ✓ | ✗ |
| Tone Detection | ✓ | ✗ |
| Style Guides | ✓ | ✗ |
| Analytics | ✓ | ✗ |
| Plagiarism Detection | ✓ | ✗ |
| Brand Tones | ✓ | ✗ |
| Writing Assistant | ✗ | ✓ |
| Summarization | ✗ | ✓ |
| Translation | ✗ | ✓ |
| Q And A | ✗ | ✓ |
| Autofill Databases | ✗ | ✓ |
| Action Items | ✗ | ✓ |
| Tone Adjustment | ✗ | ✓ |
✓ Grammarly Business Pros
- Real-time writing suggestions
- Team style guides
- Analytics dashboard
- Works across apps
✗ Grammarly Business Cons
- Expensive for large teams
- Occasional false positives
- Limited offline support
✓ Notion AI Pros
- Works directly within your existing Notion workspace
- Understands context from your pages and databases
- Q&A across entire workspace knowledge base
- Summarize meetings, docs, and databases instantly
✗ Notion AI Cons
- Requires existing Notion subscription plus add-on cost
- Quality limited compared to dedicated AI tools
- Cannot access external data sources
The Verdict
Grammarly Business is built for enterprise and marketing teams, with a focus on grammar-check and tone-detection. Notion AI targets notion users and teams and leads with writing-assistant and summarization.
On pricing, Notion AI is the clear winner for budget-conscious users — starting at $10/mo compared to $15/mo for Grammarly Business. That $5/mo difference adds up quickly for growing teams.
Neither tool offers a free plan, so factor the subscription cost into your decision from the start.
Feature-wise, Notion AI offers broader built-in capabilities (7 features vs 6), while Grammarly Business takes a more focused approach — which can mean a simpler, faster onboarding experience.
Bottom line: Grammarly Business has a slight overall edge — but if works directly within your existing notion workspace matters most to you, Notion AI may still be the right call.