Looking at upgraded my phone, Currently I have an IPhone 4s with Ballistic AE. I was hoping the IPhone 5S would be earth shattering and have more new features but it really doesn't. I looked at the Galaxy S4 tonight and like the screen size and the expansion port for micro SD cards, but tell me about the Shooter app as a Ballistic Calculator. While we are at it what do you guys think about the Android versus the IOS? The only thing I really don't like about my 4s is the battery life sucks and I have replaced it once already.