I've heard that AWS is implementing a Captcha service soon, so keep on the lookout for that. But I suggest this one because it looks easy to setup and is decent

I've heard that AWS is implementing a Captcha service soon, so keep on the lookout for that. But I suggest this one because it looks easy to setup and is decent enough since it supports math captchas. https://www.phpcaptcha.org/ https://www.phpcaptcha.org/