I'm using Mint. It has the ability to mark purchases as expenses or tag them for other purposes. I can't say how convenient or well it works, since I don't use that feature myself.
However, depending on your bank, it will import your credit and debit purchases automatically, saving a lot of manual entry. On the iPad, those entries have to wait until they are confirmed (a day or two) to edit; but you can go online and edit them as soon as they appear.
It's actually more app than I need for what I do, but it requires almost no input or correction on my part (after set up), so I'm happy.