To set up parental controls on the rumble.com/app, start by opening the app and navigating to your account settings. Here, you can find options to limit content visibility and restrict specific channels based on age-appropriateness. The app allows you to control the types of videos available to children by enabling content filters and blocking mature content. You can also use third-party parental control apps compatible with Rumble to enhance safety. This ensures a safer browsing experience for young users, helping parents manage and monitor what their children watch on the Rumble.com app effectively.