Nice user interface, but improvements are needed: (1) widget needs a "clock out" tab; (2) invoices should take rate/billing changes into account and should not automatically reflect "paid" status; and (3) removing "paid" status from time entries should not require opening, changing, and saving each entry, ie, users should be able to mark multiple entries as "paid" or "unpaid" at once.
EDIT: App does account for changes from the time of the change forward, but not for previous entries, which have to be changed manually. Not necessarily a bad thing there, but the ability to change multiple entries simultaneously would be nice. Added two stars to my review. The invoices are spectacular. I will be purchasing the full version soon.
EDIT: App does not mark invoices with outstanding balances as "paid" until an amount tendered has been entered. I didnt fully understand the proper use at the time of my initial review. So...Id like the ability to edit multiple entries at once and a "clock out" tab for the widget. More of a feature request than a complaint. Added the fifth star!
EDIT: New interface is clean and intuitive. I hope the widget, which is phenomenal, never changes. There should be simple, workable backup solution and iCloud synchronization. Not having the latter is almost criminal at this point. Lets get that going, devs. 3.5 stars.