PlagiarismCheck Review:
based on real mystery shopping

A*Help Score: 78.6/100
published August 9, 2023 - updated March 1, 2024

Quick Overview

PlagiarismCheck was made to protect students’ original work and serve educators as a trusted source of help. AcademicHelp tried the service and is ready to share our personal experience with the tool. Sure, while PlagiarismCheck can cover basic academic needs, the plagiarism detection results this service provides are average, needing minor improvements to be considered the best online plagiarism checker available. See How We Test Plagiarism Checkers for more details about our testing approach.

The Good
  • Affordable paid plans
  • Built-in AI detector
  • Easy-to-navigate platform
The Bad
  • Lack of free trial
  • Fails to detect character replacement
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
An infographic with a short PlagiarismCheck review describing the ways it was tested and how it received an A*Help Score: 78.6/100
A photo of plagiarism detection results at
Plagiarism detection at Plagiarism Check (click to see a bigger image)

PlagiarismCheck’s Plagiarism Detection Quality — 41.6/50⭐️⭐️⭐️⭐️

PlagiarismCheck demonstrated a mixed performance in plagiarism detection. It successfully identifies nearly all plagiarized content from the internet, with a 99.13% detection rate. However, it struggles significantly with AI-paraphrased text, detecting only 31.83% of the plagiarized content. We see this as a weakness in recognizing content that has been altered using AI tools. Moreover, the tool fails to detect any plagiarism in modified texts, which is a major drawback for users seeking thorough plagiarism checks. Overall, while PlagiarismCheck can be effective for straightforward cases of plagiarism, its reliability diminishes with more complex text manipulations.

A screenshot of detecting plagiarism in AI-paraphrased tex
Detecting plagiarism in AI-paraphrased text (click to see a bigger image)
> Text> Best result> Acceptable result> PlagiarismCheck result
Human-written text100% free of plagiarism10% margin of error100% free 
32.70% AI detected 
Internet sample100% plagiarism detected10% margin of error89.60% detected
AI paraphrase (2 texts)100% free of plagiarism10% margin of error23.6% plagiarism detected
Replaced characters100% plagiarism detectedFlagged character replacements0% plagiarism detected
A screenshot of a dashboard at PlagiarismCheck
Dashboard at PlagiarismCheck (click to see a bigger image)


Considering all the facts, we would say that PlagiarismCheck is a budget-friendly plagiarism detection tool that offers a decent user experience and some useful features. It does have a limited effectiveness in detecting sophisticated forms of plagiarism and the absence of a free trial option though. So this may make it less appealing compared to other tools on the market.


PlagiarismCheck Reviews

PlagiarismCheck was tested in the same way as any other anti-plagiarism services. We asked this tool to scan 5 different essays for us and confirm whether they were original written pieces or generated by AI writers or even taken from the Internet. Before conducting our mystery shopping, we checked real reviews about the service online. On sites like Reddit, Sitejabber, and our experts were looking for unbiased opinions and potential problems that users could have experienced with All information was collected and compiled in Negativity rank. The main idea of this research was to verify if said issues are true and whether they can affect students.

Is PlagiarismCheck a Scam?

PlagiarismCheck is a trusted service. The A*Help team checked 5 different documents with this tool and received full results. The tool is accessible to all users and is easy to use.  When working with it, we did not notice any troubles whatsoever.

Is PlagiarismCheck Legit?

AcadenicHelp can assure our readers that PlagiarismCheck is a legitimate service that can be used in academic environments. Its basic and advanced features, simple website, and good quality of the checkup make sure that you will not regret using this tool.

Is PlagiarismCheck Safe?

Not only is PlagiarismCheck legit but also it is safe. The AcademicHelp experts registered on the platform, purchased a subscription, and did not notice any fraudulent activities. Hence, you should not worry when trusting plagiarism detection to this service.

Is PlagiarismCheck Trustworthy?

We can assure you that PlagiarismCheck is a trustworthy and reliable platform. Based on the mystery shopping we did, PlagiarismCheck proved to be a service valid for your attention.

Is PlagiarismCheck a Good Service?

All things considered, indeed, PlagiarismCheck is a good tool. Having evaluated all the aspects, such as value for money, overall experience, and plagiarism detection quality, the AcademicHelp team gave this tool a score of 78.6 points out of 100.

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