Borderlands 2 Shift Codes

I like it, and I'm pretty sure I've got the same app on my phone(WP8), but I can't seem to figure out how to go back from the selection of system. This is annoying, as I have the game on both Xbox 360, and Steam. If this feature was available, I would have given 5 stars.

The idea is good, but the implementation can be much better. There's a lack of visual cue to see what I'm looking at. Can't see if a SHiFT code has expired or not (and why would I want to see expired?) There's a orange/red bar at the bottom with no apparent meaning. If it were possible, it would be useful to combine this with a users account to see if shift codes have been used or not. And if I'm a PC user, why would I want to see PS3 and Xbox codes? Finally, what's a premium user and why would I want to pay, to get rid of the ads at the bottom? I think scouring Facebook or twitter from Gearbox might be just as easy.

This app doesn't tell you when a new code is released

This app has potential, however, is very ugly. The background is always the same, and there's zero options other than console. If you pay for this like I did, expect the ad at the bottom asking you to remove ads by paying for the app. Sigh. It does give you the codes, but there's no way for it to inform you because of the lack of options. FIX THIS!!!