A detailed comparison of Grammarly and ProWritingAid to help you choose the right tool for your needs.
AI writing assistant for grammar, clarity, and tone improvement.
Comprehensive writing analysis tool for authors and editors
| Plan | Grammarly | ProWritingAid |
|---|---|---|
| Free Tier | ✓ Basic grammar/spelling | ✓ 500 words per edit |
| Lowest Paid | $12/mo | $10/mo |
| Enterprise | Custom | $6/user/mo |
| Feature | Grammarly | ProWritingAid |
|---|---|---|
| Grammar & spelling | ✓ | — |
| Tone detection | ✓ | — |
| Clarity suggestions | ✓ | — |
| Plagiarism checker | ✓ | — |
| GrammarlyGO generative AI | ✓ | — |
| Works everywhere | ✓ | — |
| 20+ Writing Reports | — | ✓ |
| Style Analysis | — | ✓ |
| Pacing Check | — | ✓ |
| Cliché Finder | — | ✓ |
| Thesaurus | — | ✓ |
| Scrivener Integration | — | ✓ |
| Open Source | ✗ | ✗ |
| Rating | ⭐ 4.6 | ⭐ 4.3 |
Choose Grammarly if: You need anyone wanting ai-powered grammar and style checking integrated into every writing tool they use. Grammarly excels with its works across all apps and excellent accuracy.
Choose ProWritingAid if: You need authors and editors wanting deep writing analysis beyond grammar. ProWritingAid stands out with its deepest writing analysis available and lifetime license option.
Best free option: Both Grammarly and ProWritingAid offer free tiers. Grammarly offers "Basic grammar/spelling" while ProWritingAid offers "500 words per edit".
It depends on your needs. Grammarly is better for anyone wanting ai-powered grammar and style checking integrated into every writing tool they use, while ProWritingAid is better for authors and editors wanting deep writing analysis beyond grammar. Both are excellent tools rated 4.6 and 4.3 respectively.
Grammarly starts at $12/mo while ProWritingAid starts at $10/mo. Both offer free tiers.
Most tools offer import/export features to help you migrate. We recommend trying ProWritingAid's free tier before fully committing to a switch.
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