The best for tracking bills offline
This a very straightforward and easy to use app. It gives me just what I need to track my bills.
Ive tried many of the other apps out there, but they either want me to register for an account or lack the ability to fine tune my settings to the degree this one does. (This app hits sort of a "sweet spot" that the more modern apps keep missing)
TheFinalWolf about
BillTracker for iPhone, v2.1