Grammarly vs Notion AI

Notion AI starts cheaper at $8/user/mo add-on. Pricing isn't the whole story below.

Both compete in: writingBoth compete in: productivity

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Grammarly

$12/mo

Grammar, tone, and clarity across every app.

Grammarly remains the default for grammar + tone checking. The 'Grammarly Go' generative features are catching up but are not the main reason to subscribe.

Strengths

Works in every text field across every app
Tone detector is uniquely useful
Plagiarism checker on Premium
Trusted by enterprises

Trade-offs

Generative features lag dedicated tools
Browser extension can be invasive

Best for

Anyone who writes a lot in emails, Docs, or Slack and wants a safety net.

Try Grammarly →

Notion AI

$8/user/mo add-on

AI baked into the docs/wiki/projects tool you already use.

Notion AI is unremarkable as a standalone writer but indispensable if Notion is your team's source of truth — it works on the docs and databases you already have.

Strengths

Context-aware on your existing workspace
Q&A across your wiki
Cheap add-on at $8/user/mo
Database auto-fill is genuinely useful

Trade-offs

Standalone capability < dedicated tools
Requires you to be on Notion

Best for

Teams already on Notion who want light AI inside their existing workflows.

Try Notion AI →

Which should you pick?

If your top criterion is price: Notion AI. If you care most about works in every text field across every app, pick Grammarly. If context-aware on your existing workspace matters more to you, Notion AI is the better fit.

Both are worth trying — most teams who switch land on whichever they evaluated second, because the first one set the comparison they didn't know they needed.