iThenticate Alternative: What Researchers Need to Know

You’re finishing your thesis. Or you’re preparing a research paper for journal submission. And someone mentions iThenticate.

You’ve heard of Turnitin. But iThenticate? That’s new. And it sounds intimidating.

Here’s the thing: iThenticate is stricter than Turnitin. Journals using it have higher standards. And if you’re planning to publish after graduation, you need to understand what it is and how it differs from student Turnitin.

This guide walks you through everything you need to know about iThenticate. What it is. How it works. Why journals use it. And what you can do about it.


What Actually Is iThenticate?

iThenticate is Turnitin’s professional-grade plagiarism and content similarity detection tool.

Think of it this way: Turnitin is built for students checking their theses. iThenticate is built for professionals—researchers, publishers, journal editors—checking published work.

Who uses iThenticate:

  • Academic publishers (Elsevier, Springer, Taylor & Francis, etc.)
  • Journal editors and editorial boards
  • Academic institutions checking research integrity
  • Authors checking their work before submission
  • Organizations verifying content authenticity

The key difference: iThenticate has stricter standards and accesses a much larger database than student Turnitin.


How iThenticate Actually Works (The Technical Side)

When you submit to a journal that uses iThenticate, your paper gets analyzed against:

1. Billions of Academic Sources

  • Journal articles from major publishers
  • Published research papers
  • Academic databases (PubMed, JSTOR, ProQuest, etc.)
  • Conference proceedings
  • Theses and dissertations from universities worldwide
  • Published book chapters
  • Working papers and preprints

2. Web Content

  • Published websites
  • Online publications
  • Digital archives
  • News sources
  • Blog posts and articles

3. Internal Publisher Repositories

  • Previous submissions to that journal
  • Related journals from same publisher
  • Your institution’s document collection

This is a MUCH larger database than Turnitin, which mostly focuses on student papers and some web sources.

The result: iThenticate detects matches that Turnitin might miss because it has access to more published research.


The Key Difference: iThenticate vs Turnitin For Your Work

Let me be clear about what this means for you practically.

AspectTurnitin (What You Use Now)iThenticate (What Journals Use)
Main usersStudentsResearchers, publishers, journals
Database sizeModerate (student papers + web)Massive (all academic sources + web)
Similarity toleranceUnder 20% usually acceptableUnder 15% often required
AI detectionBasicAdvanced
StrictnessModerateVery strict
False positivesCommonLess common (more refined)
CostIncluded in tuitionRM 500-800 per report
Used forThesis/courseworkJournal submissions, research integrity

Real example:

Your thesis gets 18% similarity on Turnitin. Your university is fine with it (under 20% threshold).

You graduate. You try to submit the same paper to a journal. They use iThenticate.

iThenticate shows 22% similarity because it found additional academic sources that Turnitin didn’t have access to.

The journal automatically rejects it. Too high.

This happens more often than you’d think.


iThenticate’s AI Detection: Why It’s Stricter

iThenticate includes what they call “Originality Intelligence”—basically AI detection technology.

What iThenticate’s AI detection looks for:

  • AI-generated content (ChatGPT, Claude, Gemini, etc.)
  • AI-paraphrased content
  • Mixed human-AI writing
  • Inconsistent writing style suggesting AI modification
  • Sections that don’t match the author’s typical voice

Why iThenticate’s AI detection is stricter than Turnitin:

  1. Higher stakes. Turnitin flags students who might revise. iThenticate is used to make accept/reject decisions on published research.
  2. Different standards. Universities say “disclose AI and keep it under 20%.” Journals often say “any AI-generated content is grounds for rejection.”
  3. Reputation risk. A journal publishes AI-generated research, gets caught, loses credibility. Universities have more tolerance for AI as an assistive tool.
  4. Professional context. Researchers are expected to do original thinking. Students are still learning. Different bars apply.

Real talk: If your thesis has disclosed AI usage that your university accepted, that same disclosure might get you desk-rejected at a top journal.


Who Actually Uses iThenticate?

Publishers using iThenticate:

  • Elsevier journals
  • Springer journals
  • Taylor & Francis journals
  • Sage journals
  • Oxford University Press journals
  • Cambridge University Press journals
  • Most top-tier academic publishers

If you’re submitting to a journal, check their submission guidelines. They’ll specifically say:

“All submissions are screened using iThenticate plagiarism detection software.”

If you see that, your paper will be checked with iThenticate standards, not student Turnitin standards.


iThenticate vs Turnitin: What The Stricter Standards Mean

For your thesis (Turnitin):

  • Under 20% similarity = generally acceptable at Malaysian universities
  • Disclosure of AI usage = required but accepted
  • False positives = common, supervisors understand

For journal submission (iThenticate):

  • Under 15% similarity = expected
  • Over 15% = often automatic desk rejection
  • AI disclosure = might be grounds for rejection
  • False positives = less common, editors expect perfection
  • No human review = Many journals use iThenticate as automated desk-rejection tool

What this means practically:

If you’re planning to publish your thesis as a journal article after graduation, you need to:

  1. Pass your university’s Turnitin threshold (under 20%)
  2. Also prepare for iThenticate’s stricter threshold (under 15%)

They’re different standards.


Should You Check Your Thesis With iThenticate Before Graduating?

This depends on your plans.

Option 1: Ask Your University

Many universities have iThenticate licenses. Ask your institution if you can check your thesis with iThenticate before submission.

This gives you a preview of how journals will see it.

Cost: Free (if university allows) Timeline: Same day usually Benefit: Know exactly what journal editors will see

Ask your Faculty Office or Institute of Postgraduate Studies (IPS/SPS). Most have access.

Option 2: Professional iThenticate Report Service

Professional editing services can generate official iThenticate reports for you.

PM Proofreading can provide same-day iThenticate reports.

This is useful if you know you’re planning to publish. You can fix issues before submitting to journals.

Get Same-Day iThenticate Report →

Option 3: Focus On Turnitin First, iThenticate Later

If you’re just finishing your thesis now:

  1. Get your Turnitin score under 20% for graduation
  2. Worry about iThenticate after graduation
  3. If you decide to publish, check with iThenticate then

This is reasonable because: You’re focused on completing your degree. Journal publication is a future concern.

But know this: The humanizing you do for Turnitin also helps with iThenticate. So you’re solving both problems at once.


The Real Difference For Journal Submissions: Why Journals Are Stricter

Here’s the honest truth that nobody tells students:

Universities have accepted AI as an assistive tool. They say “disclose it and keep it under 20%.”

Journals haven’t accepted AI. Many journals say “any AI-generated content = desk rejection.”

Why the difference?

Universities are thinking: “Students are learning. AI is a tool to help them learn.”

Journals are thinking: “This will be published as original research. If it’s AI-written and we publish it, we’re lying to the scientific community.”

Different contexts. Different standards.

What this means for you:

If you disclose AI usage in your thesis and your university accepts it, don’t assume a journal will accept the same disclosure. They won’t.

In fact, some journals have explicit policies: “Any indication of AI-generated content will result in automatic rejection.”

This is especially true for top-tier journals (Scopus Q1, ISI, Nature-tier publications).


iThenticate Alternatives: What Options Do You Actually Have?

If you want to check your work before submitting to journals, you have a few options:

Option 1: Ask the publisher directly

Some publishers will do a screening check for you before you submit. Not all, but some. Call their author support line and ask.

Option 2: Use your institution’s license

If your university has iThenticate access, use it. Most institutions do.

Option 3: Professional report services

Services like PM Proofreading can generate iThenticate reports for you in 2-4 hours (same day).

Get Same-Day iThenticate Report →

Option 4: Use Turnitin as a proxy

If you don’t have iThenticate access:

  1. Check your work with Turnitin
  2. Get it under 15% (even stricter than Turnitin’s 20%)
  3. Have a professional editor review for AI patterns manually
  4. Then submit to journal

This gives you reasonable confidence without formal iThenticate access.


What Happens If You Submit To iThenticate Without Checking First

This is what most researchers do. They don’t check beforehand. They just submit.

What happens:

  1. Journal receives your submission
  2. Automatic system runs it through iThenticate
  3. If similarity is above their threshold (usually 15%), it gets flagged
  4. Most journals desk-reject (automatic rejection, no human review)
  5. You get an email saying “Your submission does not meet our standards”

No explanation. No chance to revise. Just rejected.

How to avoid this:

Check your work with Turnitin (at minimum). Aim for under 15% to be safe.

If you can access iThenticate through your university or via professional service, even better.


The Key Takeaway: Preparing For Journal Submission

Whether you use iThenticate or not, here’s what you need to do:

For your thesis (right now):

  1. Get Turnitin score under 20%
  2. Disclose AI usage as required
  3. Graduate

For future journal submission (planning ahead):

  1. Aim for Turnitin under 15% to be safe for journals
  2. If possible, check with iThenticate before submitting to journals
  3. Don’t disclose AI usage in journal submissions (different standard than university)
  4. Have work professionally reviewed for AI patterns

The humanizing you do for your thesis prepares you for iThenticate later. So doing it right now solves both problems.


FAQ: iThenticate Questions

Q: Does my university use iThenticate?

A: Probably not for student theses. Most universities use Turnitin for students. But ask your IPS office. Some institutions use iThenticate for final-year projects or research.

Q: Can I get an iThenticate report same day?

A: Yes. Professional services can generate iThenticate reports in 2-4 hours. Get Same-Day iThenticate Report →

Q: Is iThenticate the only tool journals use?

A: No. Some journals use Turnitin, some use iThenticate, some use other tools. Check journal guidelines before submitting.

Q: If I pass Turnitin, will I pass iThenticate?

A: Maybe. Turnitin 18% might be iThenticate 22% because iThenticate has a bigger database. So aim for Turnitin under 15% to be safe.

Q: What if a journal rejects me for high similarity?

A: You can revise and resubmit to a different journal, or fix the issues and resubmit to the same journal if they allow it. But most journals don’t allow resubmission of the same paper.

Q: Should I disclose AI usage to journals like I did with my thesis?

A: No. Different standard. Universities accept AI with disclosure. Journals often reject any AI. Don’t disclose unless asked directly.

Q: How much more expensive is iThenticate than Turnitin?

A: For a single report: iThenticate RM 500-800 vs Turnitin RM 300-500. For institutional licenses, iThenticate costs more.

Q: Can I use iThenticate to check my thesis?

A: Only if your institution has a license and allows it. Ask your faculty office.


Bottom Line

  • Turnitin = Student tool (what you’re using for your thesis)
  • iThenticate = Professional tool (what journals use, and it’s stricter)
  • Different standards (20% okay for university, but 15% safer for journals)
  • Plan ahead (if publishing, check with iThenticate before submitting)
  • Humanizing helps both (work you do for Turnitin also helps with iThenticate)

For now, focus on getting your Turnitin score under 20% for graduation.

After graduation, if you’re publishing, you can check with iThenticate and get professional iThenticate reports to ensure journal acceptance.


Get Same-Day Reports

If you need to check your work against iThenticate standards:

Get Same-Day iThenticate Report →

Get Same-Day Turnitin AI Report →

Dr. Sara
Dr. Sara

Dr. Sara earned her PhD in Social Sciences from the City University of New York (CUNY), one of the world’s leading research institutions. As the Lead Content Strategist at PM Proofreading Services, she uses her years of experience in academic publishing to help students overcome the "Revise & Resubmit" stage and meet tough university requirements. Dr. Sara is passionate about mentoring PhD and Master’s researchers, turning their complex research into clear, polished writing to help them graduate and get published.