Grammarly Review:
based on real mystery shopping

A*Help Score: 53.5/100
🔥 published August 9, 2023 - updated October 1, 2023

Quick Overview

Grammarly is a familiar tool for every student. It’s a true lifesaver when it comes to battling spelling and grammar. But it also promises to be the best plagiarism checker for students in protecting academic integrity. AcademicHelp tried its plagiarism checker feature and we can say that it needs a lot of improvement in order to be truly beneficial to everyone in the education field.  See How We Test Plagiarism Checkers for more details about our testing approach.

The Good
  • Budget-friendly prices
  • A great number of basic features
  • Accessible website
The Bad
  • Inaccurate plagiarism quality detection
  • No free plans

Grammarly Review - Infographics with key data

SpeedPaper Review

Grammarly’s Value for Money — 14/25

Basic features
Price & special offers

SpeedPaper Review

Grammarly’s Overall Experience — 18/25

User experience & registration

Grammarly’s Overall Experience — 18/25
SpeedPaper Review

Grammarly’s Plagiarism Detection quality — 21.5/50

> Text > Best result > Acceptable result > Grammarly result
Human-written text 100% free of plagiarism 10% margin of error 100% free
Internet sample 100% plagiarism detected 10% margin of error 3% detected
AI paraphrase (2 texts) 100% free of plagiarism 10% margin of error 19.5% plagiarism detected
Replaced characters 100% plagiarism detected Flagged character replacements 0% plagiarism detected
No flags or alerts

Why is a credible source of information:

Stay curious with us. has been a reliable educational resource since 2011, providing students with the latest news, assignment samples, and other valuable materials. Even with the extensive information we process, our quality remains consistent. Each team member has experience in education, allowing us to evaluate new sector offerings critically. Our reviews are up-to-date and relevant, with impartiality ensured by the A*Help score methodology from mystery shopping. We aren’t affiliated with any listed service providers. Our focus remains on providing our audience with reliable and unbiased data.

Grammarly’s Specs

> Features
Check files
Insert text
Scanned report
Word limit
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
> Trial & special offers
Paid plans Affordable
> User experience
Easy to use website
Desktop version
Trying before registration
Browser extensions
Account (do users have an account?)
Time to check work a 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)


Grammarly Reviews

Our team at AcademicHelp always reviews services before recommending them. We read user reviews on sites like TrustPilot,, Sitejabber, and Reddit for real feedback. This information forms the basis for our mystery shopping and our Negativity Rank.

Is Grammarly a Scam?

After testing Grammarly with five different texts, we can confirm it’s not a scam. It’s easy to use and quickly scans texts. Our team received results for each essay we checked, so it’s a reliable service.

Is Grammarly Legit?

Yes, Grammarly is a legitimate plagiarism checker. Our mystery shopping found no suspicious activities, so we can confidently say it’s a legit tool.

Is Grammarly Safe?

We used Grammarly to scan five essays. But before we could do this vital step we had to create an account and pay for the subscription. We found this plagiarism checker to be safe and secure. In short, there were no fraudulent activities.

Is Grammarly Trustworthy?

Yes, Grammarly is a trustworthy service for students to check for plagiarism and writing. Many users regularly use it. And you might be the one who is a devoted user of Grammarly. Our mystery shopping confirms it’s a reliable service.

Is Grammarly a Good Service?

After testing Grammarly with five essays, we gave it a score of 52.75 out of 100 points. This score reflects not just the quality of plagiarism detection but also the cost-effectiveness and overall user experience. However, the quality of checkups leaves much to be desired.

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