Unlike apps you've completely closed, background apps maintain some level of activity to provide seamless functionality when you return to them. Background apps maintain a connection to your phone's operating system and can perform tasks such as:Downloading updatesRefreshing contentMonitoring location servicesPreparing data for when you next open themThe key difference between background apps and truly closed apps lies in their activity level. When background apps consume excessive RAM, your device may experience:Slower performance and lagForce-closing of other apps to free up memoryIncreased need for apps to restart frequentlyHigher battery consumption due to restart cyclesNetwork activity from background apps can also impact performance, especially on slower connections. The most effective approach to managing background apps involves selectively controlling which applications can run in the background while maintaining functionality you actually need. On Samsung devices, go to Settings > Apps, select individual apps, and adjust their background activity permissions.