Quillbot Plagiarism Checker Review:
based on real mystery shopping

A*Help Score: 85.1/100
🔥 published August 3, 2023 - updated June 3, 2024

Launched in 2017, Quillbot became a widely-known service with lots of different tools centered around text creation, editing, and translation, which are important for students to make the process of learning much more comfortable. Our team decided to check its key features, including Quillbot’s paraphraser, plagiarism detector, and grammar checker. As a result, we can confidently say that this tool is a practical solution for learners and can handle various tasks efficiently. But what about competitors? Which is better Quillbot or Grammarly? Let’s review everything step by step.

TOP services Our verdict AHelp Score 🔥 Updated January 2024
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AHelp Plagcheck
Best plagiarism detector 86.5/100 Get free access
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Best experience 86/100 Read review
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Best features 85.1/100 Read review
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Originality AI
Best free trial value 79.1/100 Read review
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Best price 78.6/100 Read review


🌟 A*Help score85.1/100
✅ Quality of help46.1/50

Quillbot’s is able to handle the plagiarism-checking process almost flawlessly. It surely deserves a spot at the top, being able to distinguish plagiarized texts from genuine works, and even spot the replaced characters. However, Quillbot’s plagchecker failed to detect AI-generated content. 
⚖️ Our verdict⭐⭐⭐⭐
Quillbot’s plagiarism checker shows high results in detecting plagiarised texts and can be used as a valuable tool.

Quick Overview for Quillbot’s Plagiarism Checker

Quillbot has earned its name by being a trusted writing tool for students. This tool is a true definition of “one size fits all” in the academic world. So, AcademicHelp tested one of Quillbot’s features – plagiarism scanner. The verdict: It can help learners guard the authenticity of their papers and deserves a spot as the top 10 plagiarism checker with its high detection score. See How We Test Plagiarism Checkers for more details about our testing approach.

The Good
  • Affordable paid plans
  • Browser extension
  • Quick detection process
The Bad
  • No trial
  • Failed to detect AI-generated content
An infographic with a short Quillbot review describing the ways it was tested and how it received an A*Help Score: 85.1/100

Quillbot Plagiarism Detector Review

Quillbot’ Plagiarism Detection Quality — 46.1/50 ⭐️⭐️⭐️⭐️⭐️

We are ready to share our thoughts about this plagiarism detector. QuillBot demonstrates high efficiency in detecting human-written text and content sourced from the internet, with detection rates of 91.2% and 99.7% respectively. These figures indicate a strong capability in identifying conventional plagiarism. However, its performance dips when it comes to more nuanced challenges such as AI paraphrased content, where it detected 82.65% of plagiarism but failed to recognize AI involvement. In scenarios involving text modifications, the tool showed some capability by marking anomalies within the text, though it did not attribute these to plagiarism. This nuanced detection suggests QuillBot is highly reliable for straightforward plagiarism but may need further refinement for complex cases involving AI or subtle text manipulations.

> Text> Best result> Acceptable result> Quillbot result
Human-written text100% free of plagiarism10% margin of error91.2% free 
Internet sample100% plagiarism detected10% margin of error99.7% detected
AI paraphrase (2 texts)100% free of plagiarism10% margin of error82.65% plagiarism detected
Replaced characters100% plagiarism detectedFlagged character replacementsMarked characters in the text
Plagiarims detection quality at Quillbot
Plagiarims detection quality at Quillbot (click to see a large image)

Quillbot’s Plagiarism Checker Value for Money — 17/25 ⭐️⭐️⭐️⭐️

Now, get ready to hear about the touchy topic – money. With its competitive pricing at $9.95 per month and the availability of promotional codes, QuillBot offers significant value, especially considering its broad feature set that extends beyond plagiarism checking to include spelling and grammar corrections. While the absence of a free trial might be seen as a downside, the tool’s efficiency, coupled with its affordability and discount options, makes it an attractive option for users looking for a cost-effective solution to their writing and plagiarism detection needs.

Our scans at QuillBot
Our scans at QuillBot (click to see a large image)
Basic features
Price & special offers

Quillbot’s Plagiarism Checker Overall Experience — 22/25 ⭐️⭐️⭐️⭐️⭐️

QuillBot scores highly in terms of user experience, offering an intuitive website and a desktop version that enhances accessibility. The requirement for email registration without the need for a phone number simplifies the signup process, and the provision of third-party registration methods adds convenience. The ability to find previous documents for registered users is a notable feature, emphasizing user-centric design. The platform’s quick processing time and comprehensive support options, including guides and a support chat, contribute to a positive overall experience, despite the lack of onboarding materials specific to the plagiarism checker.

Quillbot’s Overall Experience
User experience & registration


Let’s wrap it up! QuillBot distinguishes itself as a versatile and efficient tool for plagiarism detection, spelling, and grammar checking, catering to a wide audience with diverse writing needs. Its strong performance in basic plagiarism detection, user-friendly design, and affordable pricing structure make it a commendable choice for individuals and organizations alike. While it could benefit from the inclusion of more advanced features and free trial options, QuillBot remains a solid option for those in search of reliable plagiarism detection software.


Quillbot Reviews

AcademicHelp is aware of how crucial it is to use reliable services, websites, and applications. That’s why, every time we try each tool ourselves before writing about it. This time is no exception. But, we do not forget to get the whole picture. So, the A*Help experts do personal research online. Usually, we consult the following sites: Reddit, Sitejabber, TrustPilot, and Reviews.io for honest user reviews. In their feedback, we set out to find impartial opinions on the product as well as the most critical issues that could have happened. Then, we compile these cases in our Negativity rank and try to check theory on practice during our real mystery shopping experiment.

Is Quillbot a Scam?

Quillbot is not a scam. AcademicHelp checked 5 different documents with this plagiarism detector. When getting acquainted with the service, creating an account, and paying for a subscription, we did not notice any weird activities. In the end, the A*Help team received plagiarism detection results for 5 essays.

Is Quillbot Legit?

This tool is a legitimate plagiarism detector. When using it there were no suspicious activities or questionable requests from the service. AcademicHelp can assure you that Quillbot is legit.

Is Quillbot Safe?

Yes, Quillbot is safe for students and educators. The tool does not invade your privacy nor does it ask for any intrusive information. So, it is safe to admit that this tool is safe and secure to use.

Is Quillbot Trustworthy?

Having used Quillbot to check 5 different essays and received real results, the A*Help team can claim that this plagiarism detector is a trustworthy one. Founded back in 2017, it has a reputation as a helping tool for learners in the academic field. Based on our mystery shopping experience, AcademicHelp can promise that this is a reliable service.

Is Quillbot a Good Service?

We have tried Quillbot to check 5 different essays on their plagiarism detection feature. Moreover, we used this tool to paraphrase some bits of the text in one of the essays. Regarding the overall score after the A*Help assessment, we granted Quillbot 85.1/100 pts. This score consists of plagiarism detection quality, the value for money and overall experience aspects.

Quillbot’s Plagiarism Detection Specs

> Features
Check files
Insert text
Receive report
Word limit
100 pages/month
Academic proofreading module (check citations and etc)
Check for free/trial
Number of free checks available
Spelling check
Grammar check
> Advanced features
Detect AI content
Cross language search
Text compare
OCR scan
> Sources
Current Batch Files (your own docs)
Plagchecker’s database
> Price & special offers
Paid plansCheap
> Accessibility
Easy to use website
Desktop version
Trying before registration
Browser extensions
Account (do users have an account?)
Time to check worka couple of seconds
Need email to register
Need phone to register
Third-party registration methods
> Support
Onboarding (how to use plagcheck)
Support chat
> Payment
Wallets (only Paypal)

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