ZeroGPT vs GPTZero

ZeroGPT lands on Skip, and GPTZero lands on Depends.

ZeroGPT

Skip

Confidence: Medium

ZeroGPT is fine as a free curiosity check, but widespread user reports of false positives and unreliable scores make it a poor purchase.

Depends

Confidence: Medium

Fine as a free spot-check when you're merely curious about a suspicious text.

ZeroGPT versus GPTZero
Compare	ZeroGPT	GPTZero
Verdict	Skip	Depends
Best for	Free one-off checks of suspicious text	Teachers casually screening student drafts
Who it's not for	High-stakes academic misconduct decisions	High-stakes academic misconduct decisions . false positives documented
Privacy	No known public vulnerabilities found in the sources reviewed.^⁶	Public privacy/security pages and student-privacy compliance; no known breaches, but the domain appears in infostealer credential logs.
Support quality	Reviewers report poor customer support	2.2/5 Trustpilot across 139 reviews
Public sentiment	User forums and reviews repeatedly call ZeroGPT unreliable, citing false positives and poor support, despite a 4.1/5 G2 rating.^¹	Users split sharply: G2 reviewers find it practical, while Reddit is full of false-positive complaints and skepticism about detection credibility.
Biggest gotcha	Marketed as 98% accurate, but independent tests and user reports dispute this^⁵	Never use scores to accuse anyone . false positives on human writing are documented, even by professors¹⁵