Free / Open-sourceAI detection and writing verification built for schools and editors
Free / Open-sourceAI detection and writing verification built for schools and editors
hCaptcha records 5,446,045 monthly visits with +18.7% month-over-month growth and Freemium, Free Trial, Contact for Pricing, Free pricing. Polymer records 3,179 monthly visits with -18% growth and Contact for Pricing pricing.

Runtime data security for AI and SaaS workflows
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | hcaptcha.com | polymerhq.io |
| Pricing Model | Freemium, Free Trial, Contact for Pricing, Free | Contact for Pricing |
| Monthly Visits | 5.45M (5,446,045) | 3.18K (3,179) |
| MoM Traffic Delta | +858.28K (+18.7%) | -698 (-18%) |
| Primary Market & Share | 🇺🇸 United States (18%) | 🇺🇸 United States (94.2%) |
| Direct Visits / mo | 3.05M | 1.25K |
| User Rating | 4.1 | 4.2 |
| 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.

Runtime data security for AI and SaaS workflows
Build context-driven policies for your organisation's unique AI usage, then group human and non-human identities to control how each can interact with data.
Continuously monitor data in motion and at rest and label sensitive assets according to your own security policies.
Reports and risk scores surface shadow AI usage, insider threats and misconfigurations so priorities are clear.
Redact sensitive data, revoke file access and trigger custom workflows in real time, with or without human approval.
Free / Open-sourceAI detection and writing verification built for schools and editors
Free / Open-sourceAI detection and writing verification built for schools and editors
Free / Open-sourceUnified observability, security and incident response for cloud-scale engineering teams
Free / Open-sourceUnified observability, security and incident response for cloud-scale engineering teams

Enterprise 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.

Runtime security that stops prompt injection and data leaks in LLM apps

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.

The control plane for trusted enterprise agents and models
The control plane for trusted enterprise agents and models

Coding agent security that stops AI-driven risk before it lands