Detect, humanize and verify AI content in one place
Detect, humanize and verify AI content in one place
hCaptcha records 5,446,045 monthly visits with +18.7% month-over-month growth and Freemium, Free Trial, Contact for Pricing, Free pricing. LotusEye records 322 monthly visits with -58% growth and Freemium pricing.

AI anomaly detection for sensor and time-series data
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | hcaptcha.com | lotuseye.co.jp |
| Pricing Model | Freemium, Free Trial, Contact for Pricing, Free | Freemium |
| Monthly Visits | 5.45M (5,446,045) | 322 (322) |
| MoM Traffic Delta | +858.28K (+18.7%) | -445 (-58%) |
| Primary Market & Share | 🇺🇸 United States (18%) | 🌐 Global (—) |
| Direct Visits / mo | 3.05M | 92 |
| User Rating | 4.1 | 3.8 |
| 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.

AI anomaly detection for sensor and time-series data
Learns the normal behavior of each sensor or machine automatically, so teams do not have to hand-tune thresholds.
Accepts streaming sensor readings and historical series, scoring each new data point against the learned baseline.
Notifies the right people when behavior drifts away from normal, so incidents can be investigated early.
Supports loading data from CSV files and common monitoring sources for quick evaluation.
Detect, humanize and verify AI content in one place
Detect, 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

See your enterprise the way attackers do — observe, understand, signal, and respond at AI speed
See your enterprise the way attackers do — observe, understand, signal, and respond at AI speed
SpecialistDelivers endpoint security and data erasure tools, but lacks web-based bot detection and challenge features.
SpecialistDelivers endpoint security and data erasure tools, but lacks web-based bot detection and challenge features.

SpecialistSpecializes in protecting AI models against prompt injection and jailbreaks, rather than standard web traffic bot defense.
SpecialistSpecializes in protecting AI models against prompt injection and jailbreaks, rather than standard web traffic bot defense.

AI agents that detect, monitor and inspect anything you can see from the sky
AI agents that detect, monitor and inspect anything you can see from the sky

AI-powered cloud DLP and security awareness training for SaaS environments
AI-powered cloud DLP and security awareness training for SaaS environments

SpecialistCombines document authentication and ID scanning for fraud prevention, but targets identity verification rather than web traffic filtering.
SpecialistCombines document authentication and ID scanning for fraud prevention, but targets identity verification rather than web traffic filtering.

SpecialistFocuses on facial biometrics and liveness detection for identity verification, but does not provide traditional web CAPTCHAs.
SpecialistFocuses on facial biometrics and liveness detection for identity verification, but does not provide traditional web CAPTCHAs.

AI oversight that analyzes every financial transaction, not just a sample
AI oversight that analyzes every financial transaction, not just a sample

SpecialistData observability that catches silent data quality issues before they spread
SpecialistData observability that catches silent data quality issues before they spread