In the world of digital writing, ensuring grammatical precision and stylistic excellence has become non-negotiable. Two giants stand out in this space: Grammarly and ProWritingAid. Whether you’re a content writer, blogger, business professional, or student, choosing the right grammar tool can significantly influence the quality and impact of your work.
In this detailed comparison, we’ll dive deep into Grammarly vs ProWritingAid to help you determine which grammar tool wins in 2025.
What is Grammarly?
Grammarly is one of the most popular AI-powered writing assistants. Launched in 2009, it offers real-time grammar checking, spelling corrections, style suggestions, and even plagiarism detection. Grammarly is known for its intuitive user interface, speed, and multi-platform support including browser extensions, desktop apps, and mobile keyboards.
Top Features:
- Grammar and spelling checks
- Tone detection
- Style and clarity suggestions
- Vocabulary enhancement
- Plagiarism checker (premium)
What is ProWritingAid?
ProWritingAid is another powerful writing assistant that offers grammar checking, style improvements, detailed writing reports, and in-depth analysis. It’s particularly popular among fiction writers and professionals who appreciate comprehensive feedback and suggestions.
Top Features:
- In-depth grammar and style reports
- Detailed writing analysis
- Contextual thesaurus and suggestions
- Plagiarism checker (premium add-on)
- Integrations with MS Word, Scrivener, Google Docs
Grammarly vs ProWritingAid: Head-to-Head Comparison
1. Ease of Use
Grammarly: Grammarly wins when it comes to simplicity and user-friendliness. Its clean design and real-time suggestions make it ideal for beginners and busy professionals.
ProWritingAid: ProWritingAid has a steeper learning curve due to its abundance of detailed reports. While it offers deeper insights, it may feel overwhelming initially.
Winner: Grammarly
2. Accuracy of Grammar and Style Corrections
Grammarly: Excellent for catching grammar errors, punctuation issues, and offering advanced style suggestions. It’s highly accurate and evolves constantly with AI updates.
ProWritingAid: Slightly better when it comes to catching stylistic issues, sentence structure problems, and overused words. It’s great for detailed editing.
Winner: Tie (depends on your needs)
3. Style and Tone Analysis
Grammarly: Grammarly’s tone detector helps you align your writing tone with your audience’s expectations. It’s excellent for business, casual, or formal writing.
ProWritingAid: Provides tone and style suggestions but focuses more on sentence structure, readability, and writing habits over time.
Winner: Grammarly
4. Integrations and Compatibility
Grammarly:
- Browser Extensions (Chrome, Safari, Firefox, Edge)
- Desktop App (Windows, Mac)
- MS Office Integration
- Mobile App and Keyboard
- Works with Google Docs (Beta but excellent)
ProWritingAid:
- MS Word and Google Docs integration
- Desktop App
- Browser Extensions
- Works with Scrivener (important for book authors)
Winner: Tie (depends on use case)
5. Reporting and Analytics
Grammarly: Gives weekly writing insights and performance stats but is not as detailed in reporting.
ProWritingAid: Provides 20+ detailed writing reports — analyzing readability, grammar, overused words, sentence length variation, and much more.
Winner: ProWritingAid
6. Pricing Plans
Grammarly Pricing:
- Free Plan (basic grammar and spelling checks)
- Premium: ~$12/month (billed annually)
- Business: ~$15/month per user
ProWritingAid Pricing:
- Free Plan (limited features)
- Premium: ~$6.58/month (billed annually)
- Lifetime License: ~$399 one-time payment
Winner: ProWritingAid (more affordable and offers a lifetime deal)
7. Plagiarism Checker
Grammarly: Comes bundled with the Premium plan. It’s fast, accurate, and covers billions of web pages and publications.
ProWritingAid: Available as an additional paid add-on, not included by default in Premium.
Winner: Grammarly
8. Customer Support
Grammarly: Offers 24/7 support via ticketing system and a detailed help center.
ProWritingAid: Provides email-based support, but the response time can be slower compared to Grammarly.
Winner: Grammarly
Pros and Cons Summary
Grammarly Pros:
- Very easy to use
- Best for quick, everyday writing
- Excellent tone and style suggestions
- Fast, responsive platform
- Great for plagiarism checking
Grammarly Cons:
- Less detailed reports
- Higher premium price
ProWritingAid Pros:
- Extremely detailed writing analysis
- More affordable
- Great for fiction and long-form writers
- Offers lifetime deal
ProWritingAid Cons:
- Overwhelming for new users
- Slower UI compared to Grammarly
- Plagiarism checker costs extra
Which One Should You Choose?
Choose Grammarly if:
- You want a quick, reliable grammar checker for emails, blogs, and business communication.
- You prefer simple, easy-to-understand feedback.
- You often write short to medium-length content.
Choose ProWritingAid if:
- You’re a novelist, academic writer, or someone focused on long-form content.
- You love in-depth reports and detailed feedback.
- You want a budget-friendly or lifetime payment option.
Ultimately, Grammarly is ideal for fast-paced environments where you need to produce polished content quickly, while ProWritingAid is better for deep editing and mastering your writing craft.
Conclusion
Both Grammarly and ProWritingAid offer exceptional tools for writers, but they serve slightly different purposes. Grammarly shines with its simplicity and speed, making it perfect for daily writing needs. ProWritingAid, on the other hand, excels in comprehensive analysis, making it invaluable for serious writers aiming for excellence.
If you can, it’s even worth using both tools together — Grammarly for the quick checks and ProWritingAid for the deeper edits!
Regardless of your choice, investing in a grammar checker in 2025 is no longer optional — it’s essential for professional, impactful writing.