Finally started working on the iOS version. It took me a while to track down a Mac I could use (yay 2009 MacBook Pro!), and even longer to update it from Snow Leopard all the way up to OS X Yosemite for the most recent version of Xcode. I have the initial login screen working, with the backend all set up. Next step of business is planning out the main screen of the app, and getting the user registration all done. Should be able to bang out registration tomorrow, and then start implementing the other screens later in the week. I also need to continue my research on QR codes again. Great.