Head-to-head · Plagiarism Checkers
iThenticate vs PlagiarismSearch
iThenticate leads on 0 checks, PlagiarismSearch on 1, and 4 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreiThenticate · 9.0/10
- Free planonly PlagiarismSearch
iThenticate scores higher on our rubric for plagiarism checkers: 9.0 against 7.2 out of 10; our editors rank them #3 and #21.
PlagiarismSearch offers free plan; iThenticate doesn't.
iThenticate is the better fit for researchers and publishers needing private-repository checks. PlagiarismSearch is the better fit for users wanting flexible reports and filtering.
- iThenticate fits best
Researchers and publishers needing private-repository checks
- PlagiarismSearch fits best
Users wanting flexible reports and filtering
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Side by side
| Feature | iThenticate 9.0/10 Visit ↗ | PlagiarismSearch 7.2/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.0 | 7.2 |
| Ranking | #3 in Plagiarism Checkers | #21 in Plagiarism Checkers |
| Best for | Researchers and publishers needing private-repository checks | Users wanting flexible reports and filtering |
| Pricing model | Paid | Free plan + paid |
| Starting price | $125 one-time | $114.95/yr |
| Free plan | — | ✓ (best) |
| Free trial | — | — |
| Deployment | Cloud | Cloud |
| Platforms | Web | Web |
| Integrations | 3 integrations | 4 integrations |
| Features iThenticate 4/4 · PlagiarismSearch 4/4 | ||
| Web source matching | ✓ | ✓ |
| Academic source matching | ✓ | ✓ |
| API access | ✓ | ✓ |
| LMS integration | ✓ | ✓ |
| Specs | ||
| Supported languages | Not checked yet | Not checked yet |
| Word limit | Not checked yet | 150 words |
| Report export formats | PDF, HTML | |
| Our review | ||
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| Our verdict | iThenticate is a web-based similarity-checking product for scholarly publishers, research departments, institutions, authors, and researchers. It compares submitted manuscripts and other documents with internet pages, archived web content,… Read the review → |
PlagiarismSearch is a web-based plagiarism checker for students, educators, writers, bloggers, and organizations. It compares submitted content with live and archived web pages, publications, academic papers, and private storage when… Read the review → |
Strengths and trade-offs
iThenticate — where it wins
- Checks internet, publication, Crossref, submitted-work, and private-repository content
- Provides multiple report views, highlighted matches, and PDF downloads
- Supports API, LTI, and SSO integrations for organizational accounts
Where it doesn't
- No free plan is available
- The lowest-priced option costs $125 one time
- Organization pricing is customized rather than published
PlagiarismSearch — where it wins
- Checks web, archived pages, publications, and academic sources
- Exports matching-passage reports in PDF and HTML
- Supports filtering, API access, Moodle, Google Docs, and bots
Where it doesn't
- The $9.95 Light plan includes only 1 plagiarism submission
- Free checking is limited to 150 words without registration
- Some plans use submission and time-frame limits
- iThenticate9.0/10 · Paid
A paid similarity checker built for researchers, publishers, and private repositories.
Visit iThenticateFull verdict → - PlagiarismSearch7.2/10 · Free plan
Flexible source coverage, reports, filters, and integrations with a low-cost paid entry point.
Try PlagiarismSearchFull verdict →
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- iThenticate vs PlagiarismCheck.org
All plagiarism checkers comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update





