Settings > Product Settings > Force Reauthentication in Vantage Mobile and RealWear App
  
Force Reauthentication in Vantage Mobile and RealWear App
The Force Reauthentication in Vantage Mobile and RealWear App settings allows administrators to force Vuforia Vantage mobile and RealWear users to reauthenticate after a device has been inactive for a specified amount of time. Users will also be prompted to sign in again the next time they launch the app.
Specify the number of minutes of inactivity required before users are signed out of the app. When this setting is set to 0, the setting is disabled and users will not be signed out automatically.