Drillbit vs Turnitin vs iThenticate 2026: Which Is Right for Your Thesis?

If your university mentions plagiarism checking and you’re not sure whether to use Drillbit, Turnitin, or iThenticate, you’re not alone. Many PhD and MPhil students in India come across all three names and assume they’re interchangeable — they’re not.

This article explains exactly what each tool does, who it’s designed for, and how to pick the right one for your specific situation — whether you’re submitting a thesis to an Indian university or preparing a manuscript for a Scopus-indexed journal.

Table of Contents

1. What Is Drillbit?
2. What Is Turnitin Similarity?
3. What Is iThenticate?
4. Key Differences: Drillbit vs Turnitin vs iThenticate
5. Which Tool Is Right for Your Situation?
6. Conclusion

What Is Drillbit?

Drillbit is an Indian-origin plagiarism detection tool built specifically for the Indian academic context. Unlike most global tools, it was developed with the needs of Indian universities, regulators, and researchers in mind. That makes it a strong choice for students working within India’s higher education system.

One of Drillbit’s biggest strengths is its coverage of Indian academic content. Its database indexes resources like Shodhganga (the UGC’s national repository of Indian theses), Indian university thesis repositories, and regional-language content that global tools largely miss. This matters enormously for researchers writing in Hindi, Tamil, Marathi, Telugu, or other Indian languages. No other major tool comes close here.

Drillbit is widely used at NAAC-accredited institutions across India and meets the requirements of the UGC Plagiarism Regulations 2018. Universities use it to generate the similarity reports required before thesis submission gets approved.

Access to Drillbit is institutional only — individual students can’t purchase a standalone subscription directly. Institutions sign agreements with Drillbit and give access through their research offices or library portals. No public pricing in INR is listed on their platform; institutions contact Drillbit directly for licensing. If your university already has a Drillbit subscription, your supervisor or research coordinator can tell you how to access it.

Drillbit is the preferred choice for PhD and MPhil students at Indian universities — especially when the thesis includes substantial regional-language content or draws heavily from Indian academic sources.

What Is Turnitin Similarity?

Turnitin Similarity is the global leader in plagiarism detection for academic institutions. It’s used by more than 15,000 institutions worldwide. Its database covers over 99 billion web pages, more than 1.7 billion student papers, and a vast collection of published academic journals and books.

In India, Turnitin Similarity is widely accepted for PhD thesis submission compliance under the UGC Plagiarism Regulations 2018. Many central universities, IITs, IIMs, and private universities use it as their primary or exclusive similarity-checking tool. So what happens if your institution requires a Turnitin report specifically? No other tool — including iThenticate or Drillbit — can substitute for it.

Turnitin’s greatest strength is its English-language database coverage. Because it indexes such a large volume of published research, web content, and previously submitted student work globally, it’s highly effective for theses written primarily in English and drawing on international literature. Its weakness, though, is limited coverage of Indian-language content and regional academic databases — a gap that Drillbit is specifically designed to fill.

Like Drillbit, Turnitin runs on an institutional licensing model. There’s no public INR pricing for individual student access. Your university’s research office, library, or examinations department manages the institution’s Turnitin subscription. Always confirm with your department whether your institution has access before making any other arrangements.

Note: Turnitin offers two distinct products — Turnitin Similarity (for institutions, student submissions) and iThenticate (for researchers and journal manuscripts). These are not the same product, even though they share the same underlying technology.

What Is iThenticate?

iThenticate is Turnitin’s professional-grade plagiarism detection product, but it serves a very different purpose from Turnitin Similarity. While Turnitin Similarity is designed for student thesis submission, iThenticate is built for researchers, publishers, and journal editors who need to check manuscripts before academic publication.

iThenticate uses the same core detection technology as Turnitin Similarity and checks against a similarly broad database. However, it’s not appropriate as a substitute for Turnitin Similarity in thesis submission contexts. A university that requires a “Turnitin report” means Turnitin Similarity specifically — submitting an iThenticate report will typically not be accepted. Don’t make that mistake at the final stage.

Where iThenticate is genuinely essential is in journal article submission. Many Scopus-indexed and Web of Science-indexed journals require or strongly recommend an iThenticate similarity report as part of the manuscript submission process. Some publishers give authors iThenticate access upon manuscript acceptance; others require researchers to obtain access independently through their institution.

Access to iThenticate is available through:

• Your university’s institutional subscription (if available)
• A journal publisher’s author portal (upon manuscript acceptance at some journals)
• Direct institutional licensing for research organisations

The key takeaway: iThenticate is for researchers submitting to journals, not for students submitting theses. Confusing these two use cases is one of the most common — and costly — mistakes Indian PhD students make during their final submission process.

Key Differences: Drillbit vs Turnitin vs iThenticate

The table below summarises the most critical differences across all three tools for the Indian academic context.

Criterion	Drillbit	Turnitin Similarity	iThenticate
Primary use	PhD/MPhil thesis (Indian universities)	PhD/MPhil thesis (global/India)	Journal manuscript pre-submission
Indian database coverage	Excellent (Shodhganga, Indian theses, regional content)	Limited	Limited
English content database	Good	Excellent	Excellent
UGC compliance	Yes	Yes	Not applicable (for thesis)
Journal acceptance	Limited	Widely accepted	Required by most international journals
User access	Through institution	Through institution	Through institution or publisher
Public pricing (INR)	Not published	Not published	Not published
Turnaround	Fast (typically 24–48h via institution)	Fast	Fast

The single most important distinction is the primary use case. Drillbit and Turnitin Similarity are both designed for thesis submission — but they excel in different contexts. iThenticate occupies an entirely different space. It exists to serve researchers and publishers, not students preparing for viva voce.

On Indian database coverage, Drillbit has a clear advantage. If your thesis cites Indian university publications, Shodhganga theses, or is written partly or fully in a regional language, Drillbit will catch matches that Turnitin would miss entirely. For a thesis drawing on regional scholarship, this can make a real difference to your final similarity score.

On English-language and international content, Turnitin Similarity and iThenticate both outperform Drillbit. Their global databases are simply far larger. For a thesis or research paper drawing heavily on international peer-reviewed journals, Turnitin Similarity’s depth is unmatched among the three tools.

Regarding UGC compliance: both Drillbit and Turnitin Similarity are accepted under the UGC Plagiarism Regulations 2018. But that doesn’t mean you can freely choose between them — your institution decides which tool it uses, and that decision is usually non-negotiable at the submission stage.

Which Tool Is Right for Your Situation?

Ask your supervisor first. Seriously. Ask your research supervisor or university research office which tool your institution uses. That one question will resolve the majority of confusion. Both Drillbit and Turnitin are accepted under UGC Regulations 2018, but institutions typically mandate one or the other — and they won’t accept a report from a different platform.

Once you’ve confirmed your institution’s tool, use the framework below to understand your situation more precisely.

Use Drillbit if:

• Your institution has a Drillbit subscription and that’s the mandated tool
• Your thesis is written fully or substantially in a regional Indian language (Hindi, Tamil, Marathi, Telugu, Kannada, etc.)
• Your literature review draws heavily on Indian university theses or Shodhganga-indexed material
• You’re a PhD or MPhil student at a NAAC-accredited institution that uses Drillbit for UGC compliance

Use Turnitin Similarity if:

• Your institution has a Turnitin subscription and requires a Turnitin Similarity report for submission
• Your thesis is written in English and draws primarily on international peer-reviewed literature
• You’re submitting to a university that has global affiliation requirements or external examiners who expect Turnitin reports

Use iThenticate if:

• You’re a researcher preparing a journal article manuscript for submission to a Scopus or WoS-indexed journal
• Your target journal explicitly requires or recommends an iThenticate report
• Your institution or publisher has given you iThenticate access for this purpose

Don’t use iThenticate as a substitute for Turnitin Similarity when your university requires Turnitin for thesis submission. Even though both products share Turnitin’s technology, universities have specific institutional agreements and requirements. An iThenticate report submitted in place of a Turnitin Similarity report will almost certainly get rejected by your examination office.

Similarly, don’t assume Drillbit and Turnitin are equivalent simply because both satisfy UGC regulations. Your institution’s designated tool is the one you must use. Choosing independently without confirming with your research office could delay your thesis submission significantly — and that’s a headache nobody needs at that stage.

Conclusion

Three key takeaways from this comparison:

• Drillbit and Turnitin Similarity are both valid for UGC-compliant thesis submission, but they serve different strengths — Drillbit leads on Indian and regional-language databases, Turnitin leads on global English-language coverage.
• iThenticate is not a thesis tool — it’s designed for researchers submitting manuscripts to academic journals, and it can’t be substituted for Turnitin Similarity in a university thesis submission context.
• Before running any check, confirm which tool your institution mandates — this single step will save you time, money, and submission delays.

Your next step is straightforward: contact your department’s research coordinator or check your university’s PhD ordinance to confirm the approved plagiarism detection tool before your thesis reaches the pre-submission stage.