Friendly Captcha offers a proof-of-work CAPTCHA solution designed to prevent bots without user friction. It is described as a “privacy-compliant, accessible alternative to traditional CAPTCHAs”. The service runs in the background (invisible to users) and is fully GDPR-compliant: it operates with no cookies or personal data collection. Friendly Captcha meets accessibility standards (WCAG) and security standards (ISO certifications, PCI DSS) as noted on the site. It highlights German development and hosting and claims high availability (99.99% uptime). The company notes it is based in Germany, but no founding year is given on the site.