hCaptcha - Do you use a captcha to keep out bots? hCaptcha is a drop-in replacement for reCAPTCHA that earns website owners money and helps companies get their data labeled.
UserGuiding - Create in-app experiences with the most straightforward product adoption platform — quick implementation, lasting user engagement.
MTcaptcha - Enterprise Captcha solutions
Usetiful - Fight user churn with great user onboarding. Interactive product tours and smart tips significantly improve your user retention.
GeeTest CAPTCHA - GeeTest protects your websites, mobile Apps and APIs from bot threats.
Userlane - Digital adoption platform with interactive guidance for software applications allowing anyone to understand and master any software from the get-go.