To download and install the rumble app for pc, start by visiting the official Rumble website. Navigate to the "Apps" section, and if available, download the Windows version of the app. If an official app isn't provided, you can access Rumble through a web browser by visiting rumble.com. Alternatively, you can use an Android emulator like BlueStacks to download and install the Rumble mobile app on your PC. Simply install BlueStacks, search for the Rumble app in the Play Store, and download it for a seamless Rumble experience on your desktop.