to traditional CAPTCHAs. While it doesn't "solve" existing ones, it's a tool for developers to replace intrusive puzzles with frictionless, self-hosted security. Comparison of Popular Tools Best Feature Primary Use Case Open-source; no account needed Personal browsing $0 (Up to 100/day) Broad type support (AI-based) Personal automation $0 (Up to 150/day) High speed (under 0.3s) Developer testing Paid ($0.50+/1k) Human-powered fallback High-volume/Complex Important Security & Legal Risks