This is a simple per diem app, designed to be quick and easy to use. It's got rates for U.S. government travelers, or anyone using GSA/DoD per diem rates. If you're traveling somewhere and need quick access to view per diem rates for any location around the world, this app has the info you're looking for. It downloads all the per diem rates directly from the DoD and GSA to ensure accuracy, and it automatically checks for new data monthly. If you're traveling and don't have a reliable internet connection, all of the data is accessible offline after it's downloaded for the first time.