Introduction

Grammarly and ProWritingAid are two of the most popular writing assistants available today. Both tools help writers, students, and professionals improve their writing by providing grammar checks, style suggestions, and other enhancements. However, each tool has unique strengths and weaknesses that may make it a better fit for different users.

In this in-depth comparison, we will explore:
- Pricing structures
- Core features and functionalities
- User demographics and AI capabilities
- Pros and cons of each tool
- Which tool is best for specific use cases
Let’s dive in!
Pricing Comparison
One of the most significant factors when choosing a writing assistant is pricing. Here’s a detailed breakdown of Grammarly and ProWritingAid’s pricing structures:

Plan | Grammarly Price | ProWritingAid Price |
---|---|---|
Free Plan | $0 | $0 |
Monthly Plan | $20/month | $30/month |
Annual Plan | $144/year ($12/month) | $120/year ($10/month) |
Lifetime Plan | contact the customer care for clarifications. | $399 (one-time payment) |
Pricing Analysis
- Grammarly’s annual plan is slightly more expensive than ProWritingAid’s, costing $144 per year versus $120.
- ProWritingAid offers a lifetime plan, making it a better option for those who want long-term savings.
- Both offer free versions, but with limited features.
Feature Comparison
Both Grammarly and ProWritingAid offer a rich set of features, but they differ in their core capabilities. The table below provides a detailed comparison:
Feature | Grammarly | ProWritingAid |
---|---|---|
Grammar & Spell Checking | Yes | Yes |
Style Suggestions | Yes | Yes |
Plagiarism Checker | Premium Only | Premium Only |
AI-Powered Writing Suggestions | Yes | Yes |
Integrations | MS Word, Google Docs, Chrome, Windows, Mac | MS Word, Google Docs, Chrome, Scrivener |
Detailed Reports | Limited | Extensive |
Readability Score | Yes | Yes |
Repeated Word Detection | No | Yes |
Passive Voice Detection | Yes | Yes |
Sentence Structuring | Yes | Yes |
Contextual Thesaurus | No | Yes |
Academic Writing Features | Basic | Advanced |
Fiction Writing Support | Basic | Extensive |
Business Writing Enhancements | Yes | Yes |
Feature Analysis
- Grammarly is better for general writing, offering clean, simple, and effective grammar corrections with an AI-powered interface.
- ProWritingAid is better for long-form writing, especially for authors, as it provides deep style analysis and writing reports.
- ProWritingAid offers a contextual thesaurus, which Grammarly lacks.
- Both tools integrate well with common writing platforms, but ProWritingAid works with Scrivener, making it a better option for novelists and researchers.
User Base, Existence, and AI Power
Understanding the target audience of each tool is crucial for choosing the right one.
Category | Grammarly | ProWritingAid |
---|---|---|
Year Founded | 2009 | 2012 |
AI-Powered | Yes | Yes |
Main Users | Students, professionals, content writers | Authors, researchers, students, business professionals |
Target Audience | General audience | Writers and academics |
Free Version Users | Millions | Hundreds of thousands |
Analysis of User Base and AI Capabilities
- Grammarly has a larger user base, as it is widely used by students, bloggers, and business professionals.
- ProWritingAid is more niche-oriented, focusing on fiction writers, researchers, and long-form content creators.
- Both tools use AI-powered writing suggestions, but Grammarly’s AI is more refined for real-time corrections.
Pros and Cons
Grammarly Pros:
✅ Easy to use and integrates well with multiple platforms. ✅ Offers real-time suggestions with AI assistance. ✅ Great for professional and business writing. ✅ User-friendly interface with quick fixes.
Grammarly Cons:
❌ More expensive than ProWritingAid on an annual basis. ❌ Does not offer a lifetime plan. ❌ Limited in-depth analysis for long-form writing.
ProWritingAid Pros:
✅ Detailed writing reports for in-depth analysis. ✅ One-time lifetime payment option available. ✅ Better for fiction writing, academic papers, and research. ✅ Offers a contextual thesaurus and passive voice detection.
ProWritingAid Cons:
❌ Interface can feel cluttered. ❌ Slower real-time suggestions compared to Grammarly. ❌ Plagiarism checker is an additional cost.
Which One Should You Choose?
- If you need real-time grammar checks, business writing enhancements, and a clean interface, go with Grammarly.
- If you are writing books, academic papers, or long-form content, and need deep stylistic analysis, go with ProWritingAid.
- If you want a budget-friendly option with a lifetime deal, ProWritingAid is the best choice.
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