iPads need a back button like the one found on my Android phone. For example, I clicked on a photo in this forum to view an image of somebody's backside protector skin and I had no way to get back into the forum. I shut the app down, but whenever I clicked on the icon to open the forum app, it kept opening up to the picture again. I finally had to shut the iPad down and do a total restart to get it to go away.
Maybe it's an with this app and not the device?