I downloaded an app the other day for my ipad called Appstream for iPad. It reminded me of the old apple store window display that had all the cardboard apps hanging. This is kind of a fun way to find an app. I chose the setting to show me free iPad apps. The apps are displayed in real time. Click on an icon and a new box comes up that gives the pertinent information as well as screenshots and it redirects you to the app store.
I downloaded the below other apps that I am mentioning from Appstream also.