Side-by-side tool comparison
Grammarly vs ProWritingAid: Grammar Tools Compared
Disclosure: Some links earn us a commission at no extra cost to you. Rankings are independent — tools cannot pay for placement.
Grammarly is the most polished grammar assistant with excellent real-time suggestions, broad platform integration, and AI writing features — ideal for business and everyday writing. ProWritingAid offers deeper style analysis with readability reports, pacing checks, and a one-time lifetime purchase option — ideal for authors and long-form writers. Choose Grammarly for the smoothest everyday experience; choose ProWritingAid for in-depth writing improvement at a lower long-term cost.
| Feature | Grammarly | ProWritingAid |
|---|---|---|
| Type | AI writing assistant | AI writing assistant |
| Free Tier | Yes (basic grammar + spelling) | Yes (limited checks, 500 words) |
| Pro Price | $12/mo (annual) | $10/mo (annual) |
| Lifetime Deal | No | Yes ($399 one-time) |
| Grammar Accuracy | Excellent | Very good |
| Style Analysis | Tone detection, clarity | Deep (readability, sentence variety, pacing) |
| AI Writing | Yes (GrammarlyGO) | Yes (AI Sparks) |
| Plagiarism Check | Yes (Premium) | Yes (Premium) |
| Browser Extension | Yes (all major browsers) | Yes (Chrome, Firefox, Safari, Edge) |
| Desktop Apps | Mac, Windows | Mac, Windows (+ Scrivener) |
| Best For | Business writing, emails, everyday use | Long-form writing, fiction, academic |
| Crypto Payment | Card only | Card only |
Watch & Compare
Grammarly
Grammarly Tutorial: How to Improve Your Writing Instantly
ProWritingAid
ProWritingAid Overview: Ultimate Writing Tool
100+ free AI tools
Writing, PDF, image, and developer tools — all in your browser.
Disclosure: Some links on this page may be affiliate links. We may earn a commission if you make a purchase through these links, at no additional cost to you.
Frequently Asked Questions
What is the difference between Grammarly and ProWritingAid?
Grammarly is the most polished grammar assistant with excellent real-time suggestions, broad platform integration, and AI writing features — ideal for business and everyday writing. ProWritingAid offers deeper style analysis with readability reports, pacing checks, and a one-time lifetime purchase option — ideal for authors and long-form writers. Choose Grammarly for the smoothest everyday experience; choose ProWritingAid for in-depth writing improvement at a lower long-term cost.
Which is better, Grammarly or ProWritingAid?
It depends on your needs. Grammarly is the most polished grammar assistant with excellent real-time suggestions, broad platform integration, and AI writing features — ideal for business and everyday writing. ProWritingAid offers deeper style analysis with readability reports, pacing checks, and a one-time lifetime purchase option — ideal for authors and long-form writers. Choose Grammarly for the smoothest everyday experience; choose ProWritingAid for in-depth writing improvement at a lower long-term cost. Check the detailed comparison table above to see how they differ across pricing, features, and use cases.
Can I use Grammarly and ProWritingAid together?
Yes, many users combine both tools. Grammarly and ProWritingAid have different strengths, so using them side by side can cover more of your workflow. There's no technical reason you can't use both.
Who should choose Grammarly over ProWritingAid?
Pick Grammarly if your priority is professional email and business communication polishing. Pick ProWritingAid if you need fiction writers and novelists editing manuscripts. Both are solid options — the best choice depends on your specific workflow.
Is Grammarly free?
Grammarly offers a free plan with limited features. Free basic grammar checking; Premium at $12/mo for advanced features; Business at $15/member/mo for teams
Is ProWritingAid free?
ProWritingAid offers a free plan with limited features. Free basic checks; Premium at $10/mo; Lifetime license available at $399 one-time
What are the best alternatives to Grammarly and ProWritingAid?
Check our comparison page for related tools. We cover similar products in the same category so you can find the right fit. Each alternative is compared on pricing, features, and use cases.