Nice, bit needs copy ability.
I purchased this app over many other basic IP checkers because it's UI is much cleaner and fits with the aesthetic of iOS7. That being said, one glaring omission here is the ability to tap an address to copy it. There should at least be an option to long press to copy. One of the main reasons I wanted a utility like this was to easily detect local and external IPs, then quickly copy and past them to other applications. Add this ability in and I'll be happy as a clam. :)