PlagiarismCheck
by PlagiarismCheck.org
Plagiarism and AI content detection made simple.
Score
Score
Our verdict
PlagiarismCheck is a practical originality suite that pairs classic plagiarism detection with an AI content detector and an authorship “fingerprint” signal. For individuals, pricing is transparent and usage-based: Basic starts at $5.99/month for 20 checks and 100 AI-detector pages, scaling up to Premium at $45.49/month for 300 checks and 1,500 AI pages. The Google Docs add-on and browser extension make it accessible to students and editors, while an API and LMS integrations cover developers and institutions. The main drawbacks are its English-first focus and that organizational plans are quote-based, which can slow procurement. There’s also no clearly advertised annual discount. Still, if you need reliable plagiarism and AI detection without committing to heavy enterprise suites, PlagiarismCheck offers solid capability and clear limits.
Overview
Score breakdown
Overall score
Scores are editorial assessments by the Compare Best AI team on a 0–10 scale.
Expert review
CBAI Editorial Team
Compare Best AI · Editorial Team
## Overview
How we tested
Days tested
7 days
Tasks evaluated
- ·Ran plagiarism scans on student-length essays
- ·Evaluated AI detector on ChatGPT/Claude/Gemini samples
- ·Checked authorship fingerprint signal consistency across revisions
- ·Used the Google Docs add-on within a drafting workflow
Method
Compared against Turnitin and Copyleaks using identical inputs
Reviewer
CBAI Editorial Team
Plans & pricing
Free
Trying the checker on very short texts
- Plagiarism check — 1 page (~275 words) per scan
- Limited usage; English-focused
Basic
Students with occasional checks
- 20 plagiarism checks/month
- 100 AI-detector pages/month
Light
Freelancers and light editorial needs
- 50 plagiarism checks/month
- 250 AI-detector pages/month
Standard
Active editors and small teams
- 150 plagiarism checks/month
- 750 AI-detector pages/month
Premium
High-volume content operations
- 300 plagiarism checks/month
- 1,500 AI-detector pages/month
Institutional (Advanced/Pro)
Schools and organizations needing LMS integration
- Custom quote-based pricing
- LMS integrations
- API integrations
- Contact sales for details
Pricing may vary by region. Always verify on the vendor's website.
Feature comparison
| Feature | PlagiarismCheck | Turnitin | Copyleaks |
|---|---|---|---|
| Core | |||
| Plagiarism detection | |||
| AI | |||
| AI content detection | |||
| Authorship | |||
| Authorship verification (writing fingerprint) | |||
| Integrations | |||
| Google Docs add-on | |||
| Access | |||
| Public API | |||
| Pricing | |||
| Permanent free plan | |||
Is it right for you?
Good fit for
Students
Affordable monthly plans with clear allowances to check essays and citations before submission.
Educators
Plagiarism and AI-detection signals plus institutional LMS integrations for classroom workflows.
Editors & Content Leads
Screen inbound drafts for originality and AI-generation at scale with higher-tier allowances.
Developers
API integrations enable embedding checks into custom content pipelines.
Less suited for
Non‑English content
Positioned primarily for English; accuracy may drop on other languages.
Large enterprises needing fixed-rate org pricing
Institutional plans are quote-based, not flat self-serve subscriptions.
User reviews
Editorial score
Distribution is estimated from our editorial score. Verified user reviews coming soon.
Use cases
Typical ways teams rely on this tool — from everyday tasks to specialized workflows.
- Student paper checks
- Manuscript originality screening
- AI-generated text detection
- Editorial QA workflows
- Instructor LMS workflows
Integrations
Reported connectors
Apps and services commonly connected out of the box or via official connectors.
- Google Docs add-on
Details
Category
Price
- Free
- Basic $5.99/mo
- Light $9.99/mo
- Standard $25.49/mo
- Premium $45.49/mo
- Institutional (Advanced/Pro) custom
Free version
Best for
- Students: draft scanning and citation support
- Educators: classroom plagiarism and AI detection
- Editors: inbound content screening and verification
- SEO teams: guest post and freelancer checks
Frequently asked questions
PlagiarismCheck
Research & Data
Ready to get started?
Visit the PlagiarismCheck website to explore plans and start your free trial.
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