MoneyWiz is a finance manager for the iPad. It just received a big update which includes French and Spanish translations, a Net Worth feature, financial forecasts, smart auto-completers, and the ability to manage Payees.
I am terrible when it comes to managing my finances and I keep telling myself that I'm going to get disciplined with it. When I do, I will likely use MoneyWiz to help. The UI is amazing - it's packed with so many features, yet doesn't feel cluttered.