Grammarly vs ProWritingAid — Which One Wins?
A detailed, side-by-side comparison of Grammarly and ProWritingAid to help you pick the right tool for your workflow.
Quick Verdict
Grammarly takes the lead with a 4.5 rating and is best for anyone who writes professionally and wants real-time grammar, tone, and clarity improvements everywhere.. ProWritingAid (4.3) is the better pick if you need serious writers who want the deepest possible analysis of their writing style and habits..
Side-by-Side Comparison
| Criteria | Grammarly | ProWritingAid |
|---|---|---|
| Rating | ★★★★ 4.5(423) | ★★★★ 4.3(167) |
| Pricing Model | freemium | freemium |
| Starter Price | $12/mo (Premium, billed annually) | $10/mo (Premium) |
| Free Tier | Yes | Yes |
| Platforms | web, ios, android, mac, windows | web, mac, windows |
| Learning Curve | easy | medium |
| API Available | No | No |
| Best For | Anyone who writes professionally and wants real-time grammar, tone, and clarity improvements everywhere. | Serious writers who want the deepest possible analysis of their writing style and habits. |
| Verdict | recommended | recommended |
Feature Checklist
| Feature | Grammarly | ProWritingAid |
|---|---|---|
| Grammar and spelling checks | — | |
| Tone detection | — | |
| GrammarlyGO AI assistant | — | |
| Style guide (Business) | — | |
| Plagiarism detection | — | |
| Works everywhere (browser, desktop, mobile) | — | |
| Brand tones (Business) | — | |
| 20+ writing analysis reports | — | |
| Grammar and style checking | — | |
| Plagiarism checker | — | |
| Sentence variety analysis | — | |
| Cliche and overused phrase detection | — | |
| Scrivener integration | — | |
| AI Sparks (rewrite suggestions) | — |
Grammarly
Pros
- ✓Works everywhere you type with seamless integrations
- ✓Best-in-class grammar and clarity suggestions
- ✓Free tier is genuinely useful, not just a teaser
Cons
- ✕GrammarlyGO AI generation is weaker than dedicated tools like ChatGPT
- ✕Premium price adds up across team seats
- ✕Can be overly aggressive with suggestions, especially for creative writing
ProWritingAid
Pros
- ✓20+ reports provide the deepest writing analysis available anywhere
- ✓Lifetime license at $399 eliminates ongoing subscription costs
- ✓Scrivener integration makes it essential for novelists
Cons
- ✕The sheer number of reports can overwhelm new users
- ✕Free tier 500-word limit is barely enough to test
- ✕Real-time checking is slower than Grammarly
The Bottom Line
Both Grammarly and ProWritingAid are solid tools in the AI Writing & Content space. Grammarly edges ahead with a stronger overall rating (4.5 vs 4.3) and is the better choice for anyone who writes professionally and wants real-time grammar, tone, and clarity improvements everywhere.. However, if you prioritize serious writers who want the deepest possible analysis of their writing style and habits., ProWritingAid is worth serious consideration. We recommend trying the free tier or trial of each before committing.