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.
ApproveIt for Slack - Get approvals in minutes, not days. Right from Slack!
MTcaptcha - Enterprise Captcha solutions
AccessOwl - Discover Shadow IT, Automate Access Reviews and Auto-Provisioning — No Enterprise-Subscriptions required.
GeeTest CAPTCHA - GeeTest protects your websites, mobile Apps and APIs from bot threats.
Approve app for Zendesk - Any enforceable and auditable approval workflow for Zendesk tickets you can imagine can be easily created using the Approve app.