iThenticate is not natively free. For individual users, a single manuscript check (up to 25,000 words) typically costs
But someone always does. And somewhere, in a server that doesn't officially exist, another perfect, original, never-written-before paper adds itself to a list that stretches back further than anyone knows.
The quest for a free version of such sophisticated software carries significant risks. "Full" versions of premium software offered for free on third-party sites are frequently bundled with malware or used as phishing lures to steal sensitive research data. Furthermore, using unauthorized versions of iThenticate undermines the very ethics the software is meant to uphold. From a practical standpoint, because iThenticate relies on secure, cloud-based access to proprietary databases, a truly functional "offline" or "cracked" version is a technical impossibility. Users seeking free access are often met with disappointment or security compromises.