Install an app Learn how to install an app on a device during a manual session. Install an app Once you start a manual session, select Install Apps. You can upload a supported filetype from your computer, install an app from a URL, or choose an app from your app repository. If you plan on testing your in-app camera, be sure to enable Instrument application for camera injection before you install. Depending on your cleanup policy, your app may automatically uninstall after the session.