Kno is a passwordless authentication service to get your customers signed up and logged in to your app or website as quickly as possible.

When a user finds a new service also offering signup by Kno, they can signup and login in a single click. If it's a new device we fall back to using a magic link. We use strong device-based encryption and respect the user's privacy, making it not-even-a-decision for someone to try using your app.