Billings Pro is a multi-user time tracking and invoicing solution for OS X and iOS, that includes a web app for timekeepers.
With Marketcircle Cloud, you get Billings Pro with the Mac and iPhone experience, powered by the convenience of the web. Let them worry about all the setup, hosting, and backup of your data, while you focus on your business.
They host it, you access it – from anywhere, anytime.