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Grammarly vs Microsoft 365 Copilot
A factual side-by-side comparison of Grammarly and Microsoft 365 Copilot. We compare pricing, categories, free tiers and official websites — no invented scores.
Updated 2026-10-22
Quick take
Grammarly is Freemium; Microsoft 365 Copilot is Paid. If you want to start free, check the free or freemium option first; otherwise compare the categories and taglines below.
| Pricing | Freemium | Paid |
|---|---|---|
| Categories | Writing / Productivity | Productivity |
| Best for | The household grammar and tone assistant | The AI colleague across Office |
| Free tier | Yes — free or freemium | No — paid only |
| Website | www.grammarly.com | www.microsoft.com |