In 2010, Jett and Carrie created an iPhone app for training Yellowstone guides and educating visitors about Yellowstone flora and fauna. The app contained lots of information about ecology and wildlife, and it included very detailed maps of Yellowstone trails, campsites and locations (examples below). Unfortunately, it became obsolete when Apple decided to change the size of the iPhone screen. The new iPhone screen size meant that 4,000+ images would have to be edited. Keeping up with Apple’s demands simply became too costly and time consuming.
One of the features of the app was a simple interface that allowed park visitors to determine the age of bison based on their horns. Much the same way that horses can be aged by their teeth, bison can be aged by their horns. This presentation lacks the sophistication of the iPhone interface, but the general information is still present.