ios app that generates a random integer given an upper bound

This is a simple app that I made after spending a day familiarizing myself with the ios SDK.

NOTE Upper Bound is not inclusive. e.g. upperbound = 100 will give numbers in range of [0,100)

Launch screen image: copyright original user. Licensed under creative commons. Attributed link: https://www.flickr.com/photos/torley/14999534034/in/photolist-5Zag6J-6sAwEF-fJFYFD-4wHhXj-a3xJ5x-9xPKwX-yqJHQ-h2AAJk-a3xJ3t-ndFN4Q-o45JV-djaFtt-fvuz1i-eiTZvN-oRswTL-jGD71V-6s2Nh-9kucrt-nbUuCZ-9pEV2Q-tDQ1e-bkaSvN-aeRrQq-5Z5WcD-7DyjL5-yU1uX-7LQ5bP-8y2F6f-48phJY-2zJjbh-4bEYEE-7rfZZy-48phfW-48kfWr-48ph4W-48kfTa-48kfVr-48kfi8-4ySAJa-bLTNrn-eiTZhJ-xX5M3-9Pdh9m-jJNumg-48pgYq-bighsV-3p8yA3-3p8yKY-3p8yrS-8DJuVL/