ChargeTime: A Charge Clock for Professionals

ChargeTime is an app for professionals that keeps track of the hours you spend with a client or on a project, and charges them based on your hourly rate.

Features:
+ An export function (email invoices directly from app).
+ Fine-grained control over all aspects of billing (custom billing intervals, round-up/down, etc.)
+ An unlimited number of timers.
+ Your timers keep running even when you close the app or turn off your device.
+ A realistic interface with 6 tasteful backgrounds.
+ Currencies in your local currency.