Active Cache?

[LxiMax]

As the title states, I have an app that allows me the option of " Clear Cache " or " Active Cache ". Could one please explain these options to me? Searched some online and could find no exact answers. Also, I used to get notifications for this app. It no longer shows me the option under the app itself or in the Notification Center in Settings. Any ideas?

 

[Reparkable]

First of all, what app is it?

 

[LxiMax]

It's called Dark Summoner.