GeeTest CAPTCHA is described as 'GeeTest protects your websites, mobile apps and APIs from bad bot attacks with zero user friction. Its self-learning defense model based on Graph Convolutional Networks and massive volumes of biometric data collected in the past 7 years allows GeeTest to identify and mitigate' and is a Anti-Spam tool. There are more than 25 alternatives to GeeTest CAPTCHA for a variety of platforms, including Web-based, SaaS, Self-Hosted, JavaScript and PHP apps. The best GeeTest CAPTCHA alternative is Cap Captcha, which is both free and Open Source. Other great apps like GeeTest CAPTCHA are Anubis, reCAPTCHA, Procaptcha and PrivateStater.