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Polygraf.ai VS Grammarly

Compare Polygraf.ai VS Grammarly and see what are their differences

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Polygraf.ai logo Polygraf.ai

Polygraf AI is a free, completely private AI Content detector that flags text from ChatGPT, Gemini, Mistral, Llama, Grammarly and more and traces sources and copyright risk in one click.

Grammarly logo Grammarly

Clear, effective, mistake-free writing everywhere you type.
  • Polygraf.ai Polygraf AI Main Page
    Polygraf AI Main Page //
    2025-07-22
  • Polygraf.ai
    Image date //
    2024-09-03
  • Polygraf.ai
    Image date //
    2024-09-03
  • Polygraf.ai
    Image date //
    2024-09-03

Polygraf AI is a free, completely private AI Content Detector that that flags text from ChatGPT, Gemini, Mistral, Llama, Grammarly and others, traces content sources, and detects copyright risk in a single click. It is available on a web browser or as a Chrome extension. Built for solopreneurs, marketers, educators, and legal professionals, Polygraf is the all-in-one toolkit for content validation, originality and trust. Some of Polygraf AI’s top features include: AI Detector, Source Detector, Humanized Text Analysis, Copyright Detector, Deception Filter, and Writing Analysis. Please visit app.polygraf.ai to learn more.

  • Grammarly Landing page
    Landing page //
    2023-10-11

Polygraf.ai

Website
polygraf.ai
Pricing URL
Official Polygraf.ai Pricing
$ Details
freemium
Release Date
2024 May
Startup details
Country
United States
State
TX
City
Austin
Founder(s)
Yagub Rahimov
Employees
50 - 99
Edit details

Grammarly

Website
grammarly.com
Pricing URL
Official Grammarly Pricing
$ Details
freemium $12.0 / Monthly (Premium)
Release Date
2009 January
Startup details
Country
United States
State
California
City
San Francisco
Founder(s)
Alex Shevchenko
Employees
500 - 999
Edit details

Polygraf.ai features and specs

  • AI Detector
    Distinguish between human-generated and AI-generated or AI-modified content with confidence scores between 0% and 100%.
  • Source Detector
    Identify which AI models were used to create content. Supports Open AI (ChatGPT 3.5, 4), Google Gemini, Meta Llama 3, Mistral AI and Claude.
  • Humanized Text Analysis
    Analyze text to detect content that mimics human comprehension, while considering context, nuances, and sensitivities.
  • Copyright Detector
    Detects the source of the content, providing URLs and exact sentence or phrase matches from the source.
  • YouTube Context Analysis
    The only AI detection tool that offers contextual analysis of YouTube content. Simply provide the YouTube URL, and our tool will do the rest.
  • Deception Filter
    Detect intentional and unintentional text edits aimed at deceiving users, such as empty spaces between words and deliberate grammatical errors.
  • Writing Analysis
    Get insights into the structure of online text, including perplexity, readability, vocabulary richness, syntactic tree depth, average sentence length, and average word length.
  • Trust & Data Security
    We don’t train our models on your data. This means we never store your information, making Polygraf 100% secure and reliable.
  • The Best Detection Accuracy
    Our AI tools boast an impressive >98% accuracy rate in internal tests, setting a benchmark in the industry. Polygrad is trusted by businesses and governments worldwide.

Grammarly features and specs

  • Ease of Use
    Grammarly is designed with a user-friendly interface that makes it easy for users to check their writing quickly. Its real-time suggestions and simple navigation facilitate hassle-free proofreading.
  • Comprehensive Grammar and Spelling Checks
    Grammarly provides extensive grammar and spelling checks, identifying even subtle errors that are often missed by standard word processors.
  • Writing Style Improvement
    The tool offers suggestions to improve readability, tone, and overall writing style, which is beneficial for both casual writers and professionals.
  • Plagiarism Detection
    Grammarly's premium version includes a plagiarism checker that scans text against billions of web pages, providing an extra layer of proofreading for academic and professional work.
  • Customization
    The tool allows users to set their writing preferences, such as choosing American or British English, and to customize the rules based on their needs.
  • Cross-Platform Availability
    Grammarly can be accessed via browser extensions, desktop apps, and mobile apps, making it versatile for different use cases and devices.

Possible disadvantages of Grammarly

  • Costly Premium Subscription
    While the basic version is free, the premium subscription can be expensive for some users, limiting access to advanced features.
  • Overreliance Risk
    Users may become overly reliant on Grammarly, which can hinder their development of personal proofreading and editing skills.
  • Potential Privacy Concerns
    Since Grammarly processes and stores user data, there may be potential privacy concerns regarding the handling of personal and sensitive information.
  • Inconsistent Accuracy
    Although advanced, Grammarly is not flawless and may occasionally provide incorrect suggestions or fail to catch certain errors.
  • Limited Context Understanding
    Grammarly sometimes struggles with understanding contextual nuances, leading to inappropriate grammar or style suggestions.
  • Requires Internet Connection
    The tool requires a continuous internet connection to function, which can be a limitation for users with unreliable or no internet access.

Analysis of Grammarly

Overall verdict

  • Overall, Grammarly is considered a valuable tool for anyone looking to enhance their writing quality. Its comprehensive feedback and user-friendly interface make it a worthwhile investment for individuals who frequently engage in writing-related tasks. However, the premium version offers more advanced features beyond the free version, such as vocabulary enhancement suggestions and a plagiarism detector.

Why this product is good

  • Grammarly is a popular writing assistant tool that helps users improve their writing skills by offering real-time grammar, spelling, and style suggestions. It uses advanced algorithms to provide detailed feedback on sentence structure, tone, and clarity, making it useful for various types of writing, from academic papers to casual blog posts. Grammarly also integrates seamlessly with multiple platforms and browsers, enhancing its accessibility and utility for users across different devices.

Recommended for

  • Students looking to improve their academic writing and reduce errors.
  • Professionals who need to maintain clear and polished communication.
  • Content creators and bloggers aiming to produce high-quality, error-free content.
  • Non-native English speakers seeking assistance with language nuances.

Polygraf.ai videos

+ Add

How to Use Polygraf AI Content Detection Extension

More videos:

  • Demo - This AI Detector Has 98% Accuracy And Students Are LOVING IT!
  • Demo - Best AI Content Detector - Polygraf AI Google Chrome Extension

Grammarly videos

+ Add

Grammarly Review: Is it worth it, and what you NEED to know!

More videos:

  • Review - Grammarly Review 2019: Grammarly Pros and Cons and if You Should Use it
  • Review - Grammarly 2020 | Review, Features & Pricing

Category Popularity

0-100% (relative to Polygraf.ai and Grammarly)

Polygraf.ai

Grammarly

AI
28 28%
AI
72% 72
Writing Tools
9 9%
Writing Tools
91% 91
Grammar Checker
0 0%
Grammar Checker
100% 100
Productivity
100 100%
Productivity
0% 0

User comments

Share your experience with using Polygraf.ai and Grammarly. For example, how are they different and which one is better?
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Reviews

These are some of the external sources and on-site user reviews we've used to compare Polygraf.ai and Grammarly

Polygraf.ai Reviews

  1. hedgehog
    Good one

    This tool has one of the best ai (model) detectors, it really saved me when I was submitting my essay (it was 87% AI lol). Extension + web version is convenient, especially for students.

    👍 Pros:    Fast|Accurate
  2. Go longhorns
    · Bachelor of Computer Science at UT Austin ·
    By far the most detailed AI detector I've ever used

    I transitioned from Turnitin to gptzero to Polygraf. they were all useless, as I got almost suspended due to my school almost failing me for using Grammarly. I can almost swear that that I did not use any other thing. So, Polygraf was the only one that showed that I had used AI but it was Grammarly.

    👍 Pros:    Shows whichai you used|Shows and highlights the section of the ai content|Shows humanized content
    👎 Cons:    File upload was not available when i was using it|Their website can be a little more student friendly

Grammarly Reviews

  1. Highdalink
    · Founder at HighDALink ·
    Best content editing app

    Grammarly is top especially with content editing and Google doc integration features.

    🏁 Competitors: Writesonic, Ryte, Jasper.ai
    👍 Pros:    High quality content|Google doc integration
    👎 Cons:    Expensive
  2. Michael Hasty
    · Writer at DRS ·

    Grammarly is a fantastic tool that helps users step up their writing game by providing real-time grammar, spelling, and punctuation corrections. It is designed to help you create polished, professional content and ensure your message is clear and concise. Whether you're a student, professional, or just someone who wants to improve their writing skills, Grammarly has got your back.

    🏁 Competitors: ProWritingAid
    👍 Pros:    Easy to use|Thorough grammar check|Style and tone suggestions|Plagiarism detector
    👎 Cons:    Limited free version|Occasionally misses errors
  3. Eleanor Bennett
    · Digital Marketing Specialist at Logit.io ·
    Love the Google Docs plugin

    Grammarly is the most useful to me for its Google Docs feature that supports me as I create new content. Unfortunately, they seem to provide more context and insights when I am sending an email rather than writing an entire document.

Best AI Paraphraser for Non-Native English Speakers: Grammarly, QuillBot, Paraphrasing Tool, Paraphraser.io, Wordtune, Engram (2023)
Grammarly is well known for its proofreader, but did you know that Grammarly also has a paraphraser? Although not as well known as its proofreader, Grammarly does have a paraphrasing feature, so let's check it out!
Source: blog.engram.us
Best AI Proofreader for Non-Native English Speakers: Grammarly, QuillBot, Engram, ProWritingAid, Ginger, Trinka [Updated 2023]
The free version is highly limited; advanced suggestions for sentence structure and vocabulary enhancement plus access to the full online editor with more detailed explanations and suggestions are only available with Grammarly Premium. The feedback can be overwhelming at times, and it may miss context-specific errors in complex writing.
Source: blog.engram.us
AI Proofreaders: What They Are & What The Top Tools Are
Grammarly is one of the most popular writing tools right now, and that is for a reason. It is an exceptional proofreading tool. Grammarly scans what you write in the editor in real time. Then, it quickly makes suggestions. With that, this AI proofreader improves grammar, spelling, and punctuation use.
Source: pdf.wondershare.com
6 Copyscape Alternatives for Checking Plagiarism
Grammarly is an online proofreading plugin that helps content creators and bloggers check the readability of what they have written. The free version has a grammar checker, while more tools are available with their premium version.
Source: www.quetext.com
6 Best AI Grammar Checkers to Correct Mistakes in 2021
Grammarly Business – Grammarly Business is an upgraded version of Grammarly. It is equipped with more features that allow you to create style guides and handily collaborate with your teammates. The pricing starts at $12.50 per user per month.
Source: victorytale.com

Social recommendations and mentions

Based on our record, Grammarly seems to be more popular. It has been mentiond 85 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Polygraf.ai mentions (0)

We have not tracked any mentions of Polygraf.ai yet. Tracking of Polygraf.ai recommendations started around Sep 2024.

Grammarly mentions (85)

  • The Best 100 Free UI/UX Resources for Every Designer & Developer
    Grammarly Grammarly.com Free writing assistant to enhance clarity and grammar in UI text. - Source: dev.to / 7 months ago
  • Are these changes really necessary?
    Use Grammarly, the app or the extension. Source: about 2 years ago
  • 🧰 AI Tools +150 Tools in 6 Categories
    Grammarly - An online writing tool that helps users improve their writing skills and beat writer’s block. I use it everyday…. Source: over 2 years ago
  • What drives the registration price of domain extensions?
    I asked the question. Response text generated by ChatGPT and corrected by Grammarly.com. Source: over 2 years ago
  • Prestige-Blinded Questbridge Asian With Barebones Application Learns to Dispel His Myopia (but somehow lucks out)
    I did not have anyone read over my essays. I regret that now, knowing that my application would have cried out for joy if only there were a reader other than grammarly.com and my drowsy midnight self. I also wrote my essay a day before the Questbridge deadline (I think the deadline was Sept 27th?), which is a terrible, TERRIBLE idea. Please do not do things last minute :D. Source: over 2 years ago
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What are some alternatives?

When comparing Polygraf.ai and Grammarly, you can also consider the following products

150 ChatGPT 4.0 prompts for SEO - Unlock the power of AI to boost your website's visibility.

QuillBot - Quillbot is a free paraphrasing tool that will rewrite any sentence or paraphraph you give it. The article rewriter can rewrite essays or articles and is excellent as a grammar and fluency corrector.

ChatGPT - ChatGPT is a powerful, open-source language model.

LanguageTool - Free proofreading tool for OpenOffice, LibreOffice, Firefox, and Chrome.

Awesome ChatGPT Prompts - Game Genie for ChatGPT

ProWritingAid - For the smarter writer. A grammar checker, style editor, and writing mentor in one package.

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