Roundtable (Proof of Human) records 854 monthly visits with -60.5% month-over-month growth and Contact for Pricing pricing. ZeroGPT records 32,864,541 monthly visits with +19.7% growth and Freemium, Paid pricing.
Prove every user is real — invisibly and continuously.
AI content detection and a full writing toolkit in one place
| Dimension / Metric | | |
|---|---|---|
| Official Domain | roundtable.ai | zerogpt.com |
| Pricing Model | Contact for Pricing | Freemium, Paid |
| Monthly Visits | 854 (854) | 32.86M (32,864,541) |
| MoM Traffic Delta | -1.31K (-60.5%) | +5.41M (+19.7%) |
| Primary Market & Share | 🇺🇸 United States (100%) | 🇺🇸 United States (43%) |
| Direct Visits / mo | 336 | 8.22M |
| User Rating | 3.9 | 3.8 |
| Supported Platforms | Website | Website |
Prove every user is real — invisibly and continuously.
Proof of Human runs silently behind login and checkout flows, scoring behavior in under 200 milliseconds without CAPTCHAs or friction for real people.
Continuous behavioral models look for programmatic typing, teleporting mouse movement, jump scrolling, centered clicks and pasted text to catch bots and AI agents mid-session.
The service states it collects no PII and does no cross-site tracking, helping teams meet compliance and privacy requirements.
A single script tag with a site key and user ID is enough to begin verifying sessions, and results include an example session report with explainable signals.
AI content detection and a full writing toolkit in one place
Paste up to 15,000 characters or upload a file and get a highlighted breakdown of which sentences appear AI-written, plus an overall percentage score and a downloadable PDF report.
Beyond text, ZeroGPT offers an AI image detector and an AI video detector that performs frame-level analysis to flag generated or manipulated visuals.
Compare your text against billions of sources through the plagiarism checker, or rewrite and humanize AI text with the paraphraser and AI humanizer while keeping the original meaning.
A bundled writing suite covers summarization, grammar and spelling correction, translation across many languages, a dictionary, word and character counting, citation generation, and an AI email writer.
SpecialistCross-platform writing assistant focused on real-time grammar and tone correction rather than AI content detection.
SpecialistCross-platform writing assistant focused on real-time grammar and tone correction rather than AI content detection.
SpecialistPopular paraphrasing assistant focused on rewriting and grammar correction, but lacks dedicated AI detection scanners.
SpecialistPopular paraphrasing assistant focused on rewriting and grammar correction, but lacks dedicated AI detection scanners.
Industry-standard AI content detection trusted by educators, offering robust sentence-level analysis similar to ZeroGPT.
Industry-standard AI content detection trusted by educators, offering robust sentence-level analysis similar to ZeroGPT.
SpecialistAcademic editing platform pairing AI plagiarism detection with professional human proofreaders for student papers.
SpecialistAcademic editing platform pairing AI plagiarism detection with professional human proofreaders for student papers.
Free / Open-sourcePrivacy-first bot detection and fraud prevention for the web
Free / Open-sourcePrivacy-first bot detection and fraud prevention for the web
Targeted research audiences with AI-verified data quality
Targeted research audiences with AI-verified data quality
Combines reliable AI detection with advanced text humanization tools to rewrite machine-generated content naturally.
Combines reliable AI detection with advanced text humanization tools to rewrite machine-generated content naturally.
Enterprise-grade content verification suite detecting AI text, images, and source code across multiple languages.
Enterprise-grade content verification suite detecting AI text, images, and source code across multiple languages.
Comprehensive content integrity platform specialized in accurate AI detection and plagiarism checking for digital publishers.
Comprehensive content integrity platform specialized in accurate AI detection and plagiarism checking for digital publishers.
Multilingual AI content detection platform providing detailed sentence-level scoring and writing integrity utilities.
Multilingual AI content detection platform providing detailed sentence-level scoring and writing integrity utilities.
SpecialistOnline writing suite blending AI humanization tools with plagiarism and readability checking features.
SpecialistOnline writing suite blending AI humanization tools with plagiarism and readability checking features.
High-accuracy AI content detector that scans both text and uploaded images for machine generation.
High-accuracy AI content detector that scans both text and uploaded images for machine generation.
