Roundtable (Proof of Human): Offers frictionless behavioral verification without traditional CAPTCHAs, but has a less established developer ecosystem. hCaptcha records 5,446,045 monthly visits with +18.7% month-over-month growth and Freemium, Free Trial, Contact for Pricing, Free pricing. Roundtable (Proof of Human) records 854 monthly visits with -60.5% growth and Contact for Pricing pricing.
Privacy-first bot detection and fraud prevention for the web
Prove every user is real — invisibly and continuously.
| Dimension / Metric | | |
|---|---|---|
| Official Domain | hcaptcha.com | roundtable.ai |
| Pricing Model | Freemium, Free Trial, Contact for Pricing, Free | Contact for Pricing |
| Monthly Visits | 5.45M (5,446,045) | 854 (854) |
| MoM Traffic Delta | +858.28K (+18.7%) | -1.31K (-60.5%) |
| Primary Market & Share | 🇺🇸 United States (18%) | 🇺🇸 United States (100%) |
| Direct Visits / mo | 3.05M | 336 |
| User Rating | 4.1 | 3.9 |
| Supported Platforms | Website | Website |
Privacy-first bot detection and fraud prevention for the web
Multi-layered detection delivers risk scores and near-zero false positives, with passive and no-CAPTCHA modes.
Stop transaction fraud, account takeovers and multi-accounting with privacy-preserving signals and no PII.
A stronger, toll-free alternative to SMS MFA that reduces fraud while simplifying the user experience.
Build custom risk models with adaptive learning and enrich your own ML using blinded, compliant signals.
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.
Free / Open-sourceAI content detection and a full writing toolkit in one place
Free / Open-sourceAI content detection and a full writing toolkit in one place
Free / Open-sourceAI detection and writing verification built for schools and editors
Free / Open-sourceAI detection and writing verification built for schools and editors
Targeted research audiences with AI-verified data quality
Targeted research audiences with AI-verified data quality
Free / Open-sourceDetect, humanize and verify AI content in one place
Free / Open-sourceDetect, humanize and verify AI content in one place
SpecialistEnterprise AI and plagiarism detection for content integrity
SpecialistAI detector, plagiarism and content-quality checks in one scan
SpecialistAI detector, plagiarism and content-quality checks in one scan
Free / Open-sourceMultilingual AI detector with sentence-level insight
Free / Open-sourceMultilingual AI detector with sentence-level insight
Free / Open-sourceFree AI detector with sentence-level insight and a humanizer
Free / Open-sourceFree AI detector with sentence-level insight and a humanizer
Free / Open-sourceAI detector that highlights evidence, not just a score
Free / Open-sourceAI detector that highlights evidence, not just a score
Free / Open-sourceTwo minutes, one stranger, one question: human or AI?
Free / Open-sourceTwo minutes, one stranger, one question: human or AI?
Free / Open-sourceAccuracy-first plagiarism and AI detection for schools, universities, and teams
Free / Open-sourceAccuracy-first plagiarism and AI detection for schools, universities, and teams
SpecialistApplies AI behavior analysis to network and cloud security, but is designed for enterprise infrastructure rather than web forms.
SpecialistApplies AI behavior analysis to network and cloud security, but is designed for enterprise infrastructure rather than web forms.
