Hi, Try using Replicon's software! Its really easy-to-use adn quick to implement. It is also integrated with project management and accounting software as well. It is specially designed for iphone users. So, you have iphone then its more comfortable to view the status of official timesheets, work hours, clients billing housrs and overall expenses instantly. You can find more details from this link - ( http://www.replicon.com/time-tracking-softwares.aspx ) Thanks!!