YouTube: How to Turn On Incognito Mode on Mobile

Users can browse the app as though they aren't signed in

The YouTube mobile application allows users to turn on Incognito Mode whenever they want to use the app without their previous account activity influencing their experience. When users turn on Incognito Mode, the app will act as though the user isn’t signed in to their account. In addition, when it is turned off, the search and watch history from their Incognito Mode session will be deleted.