All industries · head to head
Grammarly vs Notion AI
Notion AI
Writing & Documentation
AI-powered productivity within Notion
- From
- $10/month
- Rated
- -
The short version
- Only Grammarly has a free tier, so it costs nothing to try first.
- Each has a real cost: Grammarly occasional false positives and grammatically incorrect suggestions that can introduce errors; Notion AI full AI access including agents and meeting notes requires the Business plan at $20 per member per month, double the $10 Plus plan
- They diverge on capability: Grammarly covers Grammar checking, Notion AI covers Writing assistance.
Where they differ
Only the attributes on which Grammarly and Notion AI actually diverge.
Identical on both: user rating (Not yet rated).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Grammarly
- Grammar checking
- Spelling correction
- Punctuation
- Clarity suggestions
- Engagement feedback
- Delivery insights
- Plagiarism checker
- Citation generator
Only in Notion AI
- Writing assistance
- Summarization
- Translation
- Q&A
- Native Notion
- Google Drive
- Web support
- Desktop support
Both cover
- Slack
What people use each for
The jobs each tool is most often brought in to do.
Grammarly
- Email writingnot Notion AI
- Document editingnot Notion AI
- Academic writingnot Notion AI
- Business communicationnot Notion AI
- Content creationnot Notion AI
Notion AI
- Generating and summarising documents inside a Notion workspacenot Grammarly
- Autofilling database properties and searching across connected toolsnot Grammarly
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Grammarly
- Occasional false positives and grammatically incorrect suggestions that can introduce errors
- Privacy concerns about sending text to Grammarly's servers for analysis
- AI capabilities sometimes produce hallucinations and fabricated citations that appear grammatically correct
Notion AI
- Full AI access including agents and meeting notes requires the Business plan at $20 per member per month, double the $10 Plus plan
- The Free and Plus plans offer trial AI capabilities rather than the full feature set
- AI is not sold separately from the workspace seat, so every member must be upgraded to reach it
- Zero data retention with LLM providers is Enterprise only, which is custom priced
Pricing, plan by plan
Grammarly
Free- FreeFree
- Basic grammar and spelling checks
- Tone visibility
- 100 AI prompts per month
- Pro$12/month
- Sentence rewrites
- Tone adjustment
- Plagiarism and AI detection
Notion AI
$10/month- Plus with AI$10/month
- Unlimited AI usage
- Unlimited blocks
- Business with AI$15/month
- Advanced permissions
- SAML SSO
Which should you pick?
Choose Grammarly if
- You need grammar checking.
- You want to start without paying.
- You work on Web, macOS, Windows, iOS, Android.
- You also want spelling correction.
Choose Notion AI if
- You need writing assistance.
- You work on Web, Desktop, Mobile.
- You also want summarization.
Questions people ask
- Is Grammarly or Notion AI better?
- Neither clearly leads. Grammarly starts at Free and Notion AI at $10/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Grammarly or Notion AI?
- Grammarly has a free tier; the other does not. Paid plans start at Free for Grammarly and $10/month for Notion AI.
- Does Grammarly or Notion AI run on more platforms?
- Grammarly runs on Web, macOS, Windows, iOS, Android. Notion AI runs on Web, Desktop, Mobile.
- Can I use Grammarly for free?
- Yes. Grammarly has a free tier, so you can try it without paying. Notion AI starts at $10/month.
- What is Grammarly best used for?
- Grammarly is most often used for email writing, document editing, academic writing, business communication. Of those, email writing and document editing are not what Notion AI is typically brought in for.
- What can Grammarly do that Notion AI cannot?
- Grammarly covers Grammar checking, Spelling correction, Punctuation, Clarity suggestions. Notion AI covers Writing assistance, Summarization, Translation, Q&A. Both handle Slack.
Answered from the vendors’ own pages
Grammarly: Does Grammarly have a free version?
Yes, Grammarly offers a free tier with basic spelling, grammar, and punctuation checks, tone visibility, and 100 AI prompts per month. The Pro plan ($12/month annual) adds sentence rewriting, plagiarism detection, and 2,000 AI prompts.
SourceGrammarly: What platforms does Grammarly work with?
Grammarly works across 1 million+ apps including Google Docs, Microsoft Word, Outlook, Slack, Gmail, and web browsers. It also integrates with productivity tools like Asana, Jira, Monday.com, Confluence, and HubSpot.
SourceGrammarly: Can I use Grammarly offline?
Grammarly requires an internet connection to function, though the browser extension works with some offline text areas. For offline use, the desktop app and browser extensions sync when reconnected.
SourceGrammarly: What is included in the Enterprise plan?
The Enterprise plan includes unlimited team members, dedicated support, custom roles and permissions, data loss prevention, bring-your-own-key encryption, and unlimited AI prompts. Pricing is custom and available by contacting sales.
Source