10 of 10Image
Skyscanner is another option for cheap travel deals. The app pulls in flights from different providers, and lists each airline and its rates. You can then buy the tickets directly from the airline.
Developer: FYI Mobileware
iXpenseIt is an essential productivity app not only for budget watchers, but also for business users. Able to be secured via password and backed up over the Web, the application can be used for daily expense tracking and monthly budgets -- useful if you need to log costs in order to claim expenses. The app can also be used to set reminders for upcoming bills, currency conversion, and printing via .PDF conversion.