Ans. Your device, whether it runs on an iPhone or a Google System Software, contains a variety of programs, including a mobile service manager, many of whose features you might not fully comprehend, and the Facebook App Manager is one of them. Given that it is absent from the main menu, it might not be a helpful application. However, as implied by its name, it is closely tied to the Facebook app. To put it simply, Facebook. app. A manager is a group of Facebook-related package files that improve the user experience while using Facebook. The Facebook.app.manager and com.facebook.katana are just two of the numerous tiny programs or package folders that underpin the Facebook app's operation. By keeping the Facebook apps, such as Instagram, Messenger, and Facebook itself, updated, it contributes to a better user experience. The Facebook App Manager implements the upgrades to keep the apps mentioned above operational when they are periodically released. Additionally, it detects crashes and alerts the Facebook servers for prompt action to prevent crashes from occurring.