These methods are used in suspended state

suspended.swift

func applicationDidReceiveMemoryWarning(_ application: UIApplication) {
    // It is called when the app receives a memory warning
    // This method can be used to release any resources that can be recreated when the app is launched again
}

func applicationWillTerminate(_ application: UIApplication) {
    // It is called when the app is about to terminate
    // This method can be used to save data or perform other cleanup tasks before the app is terminated
}