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Head-to-head · Plagiarism Checkers

iThenticate vs MOSS

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score iThenticate #3 in Plagiarism Checkers 9.0/10 Paid ✓ 4 of 4 features Visit iThenticate
MOSS #5 in Plagiarism Checkers 8.8/10 Free plan Free plan✓ 0 of 4 features Visit MOSS

iThenticate leads on 2 checks, MOSS on 1, and 2 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 MOSS
  • Most featuresiThenticate · 4 of 4

iThenticate scores higher on our rubric for plagiarism checkers: 9.0 against 8.8 out of 10; our editors rank them #3 and #5.

MOSS offers free plan; iThenticate doesn't. iThenticate offers web source matching; MOSS doesn't. iThenticate offers academic source matching; MOSS doesn't.

iThenticate is the better fit for researchers and publishers needing private-repository checks. MOSS is the better fit for free source-code checks across many languages.

  • iThenticate fits best

    Researchers and publishers needing private-repository checks

  • MOSS fits best

    Free source-code checks across many languages

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature iThenticate 9.0/10 Visit ↗ MOSS 8.8/10 Visit ↗
At a glance
Editor score 9.0 8.8
Ranking #3 in Plagiarism Checkers #5 in Plagiarism Checkers
Best for Researchers and publishers needing private-repository checks Free source-code checks across many languages
Pricing model Paid Free
Starting price $125 one-time Free
Free plan — ✓ (best)
Free trial — —
Deployment Cloud Cloud
Platforms Web Web, Linux
Features iThenticate 4/4 · MOSS 0/4
Web source matching ✓ (best) —
Academic source matching ✓ (best) —
API access ✓ (best) Not checked yet
LMS integration ✓ (best) Not checked yet
Specs
Supported languages Not checked yet 24 languages
Word limit Not checked yet Not checked yet
Report export formats PDF HTML
Our review
Pros
  • 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
  • Free for non-commercial use with account registration
  • Analyzes source code across 24 listed programming languages
  • Highlights matching passages and excludes expected shared code
Cons
  • No free plan is available
  • The lowest-priced option costs $125 one time
  • Organization pricing is customized rather than published
  • Designed for non-commercial use
  • Requires Linux submission script for file submission
  • Results indicate similarity and require human review
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 →

MOSS, or Measure Of Software Similarity, is an Internet service for comparing source-code submissions and detecting potential plagiarism in programming classes. It is suited to instructors and educational settings that need to review…

Read the review →
  1. iThenticatePlagiarism Checkers 9.0Paid
  2. MOSSPlagiarism Checkers 8.8Free plan

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

  • MOSS — where it wins

    • Free for non-commercial use with account registration
    • Analyzes source code across 24 listed programming languages
    • Highlights matching passages and excludes expected shared code

    Where it doesn't

    • Designed for non-commercial use
    • Requires Linux submission script for file submission
    • Results indicate similarity and require human review

More comparisons

All plagiarism checkers comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update