A (s)imple, (l)ight(w)eight app history widget, that displays the recently used apps in a widget. You can start those recently used apps by clicking on them in the widget. No ads. 100% fat free! Only 26 Kb small so it won't eat up your device storage space. It updates only once per minute to extend your battery life.
This is a widget so you need to drop it on your homescreen it is not an app.
If you like more of those simple, lightweight widgets which only ask you for the permissions they realy need and don't fill up you phone with Megabytes of data even if they need to do only a small job then check the other SLW widgets.
Open source GNU GPL 3.0
*added "you are doing it wrong" info, for people trying to "start" the widget like an app