Billings Pro is a powerful multi-user time-tracking and invoicing solution for the Mac and iPhone, with a Web interface called Timecard for non-management staff. It was built for service-based small businesses with 1 to 50 users, and offers a unique solution for the utmost flexibility.
With Billings Pro's flexibility, you can track time, expenses, and mileage from anywhere at anytime. For small businesses, losing track of as little as 3 billable minutes a day per employee can equate to thousands in lost revenue.
Billings Pro is a subscription-based service.
For full pricing details, see here.