With the Application Manager you can manage the applications on your smartphone or tablet. It offeres a quick access to existing Android functions. In the list of applications there is also a quick overview of the requested rights of an application displayed.
The options to sort applications by their last update time or their first install time are only working with Android 2.3 and above.
The SD card icon can only be shown with Android 2.3 and above.
If you use the Task Manager, you do not need the Application Manager. All of its functions are included in the Task Manager.