Grammarly vs ProWritingAid: Output Quality, Templates & Pricing
Compare Grammarly and ProWritingAid on writing quality, content templates, SEO features, tone control, and pricing.
- Category
- AI Writing & Content Tools
- Format
- Head-to-head
- Updated
- April 4, 2026


How they compare
| Feature |
Grammarly
|
ProWritingAid
|
|---|---|---|
| Made by | Grammarly, Inc. | Orpheus Technology Ltd. |
| Category | AI Assistant AI Book Writing Office & Productivity Writing & Editing | AI Editing Tools AI Grammar Checker Tools AI Writing & Content Tools Content, Media & Communication +1 more |
| Pricing model | Free Freemium Subscription | Free Freemium Subscription |
| Platforms | Android Chrome Extension Desktop App Firefox Extension +4 more | Browser Extension Desktop Google Docs Add-on Microsoft Word Add-in +1 more |
| Built with | JavaScript Machine Learning Python | JavaScript Python React |
| Languages | English | English |
| Based in | United States | United Kingdom |
Greyed rows are the same for both tools.
What each one is
Grammarly
Grammarly is an AI-powered writing assistant designed to help users improve their written communication by providing real-time grammar, spelling, punctuation, and style suggestions. It integrates seamlessly with web browsers, desktop applications, and mobile devices to support writing across emails, documents, social media, and more.
ProWritingAid
ProWritingAid is an AI-powered writing assistant designed to improve grammar, style, and readability. It offers detailed reports and suggestions to help writers polish their work, whether academic, creative, or professional. The tool integrates with popular platforms like Microsoft Word, Google Docs, and web browsers to provide real-time feedback.
Key features
Grammarly
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Real-Time Grammar and Spell Check
Detects and corrects grammar, spelling, punctuation, and syntax errors as you write.
-
Tone Detection
Analyzes the tone of your message to ensure it matches your intended audience and purpose.
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Plagiarism Checker
Compares your text against billions of web pages to detect unoriginal content.
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Writing Style Customization
Set goals based on audience, formality, domain, and intent to receive tailored suggestions.
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Vocabulary Enhancement
Offers synonym suggestions and word choice improvements to enrich your writing.
ProWritingAid
-
Grammar and Spell Checker
Detects and corrects grammar mistakes, typos, and punctuation errors.
-
Style and Readability Reports
Analyzes sentence length, passive voice, clichés, and readability scores.
-
Plagiarism Checker
Compares text against billions of web pages to identify potential plagiarism.
-
Contextual Thesaurus
Suggests synonyms based on context to improve word choice.
-
Integrations
Works with Microsoft Word, Google Docs, Scrivener, Chrome, Firefox, and Safari.
Pricing
Plans as published by each vendor. Check the vendor site before buying — pricing changes.
Grammarly
Free $0/month
Basic grammar, spelling, and punctuation checks with limited features.
Pro (monthly) $30/month
Advanced grammar, style, tone, vocabulary suggestions, and plagiarism detection.
Pro (annual) $12/month (billed $144/year)
Team management, centralized billing, style guides, and priority support for organizations.
Enterprise Custom pricing
ProWritingAid
Free $0/month
Limited access with basic grammar and spelling checks.
Premium $20/month
Full access to all reports, plagiarism checker, and integrations.
Premium Plus $24/month
Includes plagiarism checker credits and priority support.
Strengths and trade-offs
Grammarly
Strengths
- Accurate and comprehensive grammar and style checking
- Easy integration with multiple platforms and apps
- Helpful explanations for suggested corrections
- Customizable writing goals for different contexts
- Includes plagiarism detection in premium plans
Trade-offs
- Premium features require subscription
- Internet connection needed for real-time suggestions
- Limited support for languages other than English
ProWritingAid
Strengths
- Comprehensive writing reports covering multiple aspects
- Integrates with popular writing platforms
- Affordable pricing with a free tier
- Detailed explanations help improve writing skills
- Plagiarism checker included in premium plans
Trade-offs
- Primarily supports English only
- User interface can be overwhelming for beginners
- Some advanced features require premium subscription
Who it is for
Grammarly
- Students and educators
- Professional writers and editors
- Business professionals
- Content creators and marketers
- Non-native English speakers
ProWritingAid
- Students and academics
- Content marketers and bloggers
- Authors and creative writers
- Business professionals
- Editors and proofreaders
What people use it for
Grammarly
-
Grammar and Spell Checking
Automatically detect and correct grammar, spelling, and punctuation errors in real-time across various platforms.
-
Writing Style Enhancement
Improve clarity, tone, and style of writing with suggestions tailored to different writing goals.
-
Plagiarism Detection
Scan text against billions of web pages to identify potential plagiarism and ensure originality.
-
Professional Communication
Enhance emails, reports, and business documents to maintain professionalism and clear communication.
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Academic Writing Support
Assist students and researchers in producing error-free essays, papers, and theses.
ProWritingAid
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Academic Writing
Helps students and researchers improve grammar, style, and clarity in essays, theses, and papers.
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Content Creation
Assists bloggers, marketers, and authors in refining content for readability and engagement.
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Business Communication
Enhances emails, reports, and proposals with professional tone and error-free language.
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Creative Writing
Supports fiction and non-fiction writers with style suggestions and pacing improvements.
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Editing and Proofreading
Provides detailed reports to identify grammar mistakes, repeated words, and sentence structure issues.
Getting started
Grammarly
Install and Integrate
Add Grammarly as a browser extension, desktop app, or mobile keyboard to enable writing assistance across platforms.
Write or Upload Text
Type directly into Grammarly’s editor or upload documents for analysis.
Receive Real-Time Suggestions
Grammarly scans text instantly and highlights errors or improvements with explanations.
Apply Corrections and Adjustments
Accept or ignore suggestions to refine your writing according to your style preferences.
ProWritingAid
Upload or Write Text
Users can paste text into the web editor or write directly within supported platforms.
Run Analysis
The tool scans the text for grammar, style, readability, and plagiarism issues.
Review Suggestions
Users receive detailed reports with explanations and can accept or reject corrections.
Improve and Export
After applying changes, users can export the polished text or continue editing.
Common questions
Yes, Grammarly offers a free version with basic grammar and spelling checks. Premium plans unlock advanced features.
Yes, it offers detailed explanations and suggestions that help non-native speakers improve their writing skills.
Grammarly requires an internet connection to process text and provide suggestions.
ProWritingAid primarily works online, but desktop apps allow some offline editing with syncing when reconnected.
Yes, plagiarism detection is available in the Premium and Business plans.
Yes, it offers an add-in for Microsoft Word on Windows and Mac.
Grammarly supports web browsers, desktop apps for Windows and Mac, Microsoft Office add-ins, and mobile apps for iOS and Android.
It compares your text against billions of web pages and academic databases to provide reliable plagiarism detection.



