Capparsa has TimeTag (iTunes Link) for the iPhone, iPod Touch, iPad in the iTunes App Store for FREE (regularly $3.99) for a limited time.

TimeTag is the timesheet app that you love. Its premise is simple: Allow you to track and tag your time with ease. Featuring the “Big Green Button”, TimeTag brings everything you would want from a timesheet just a few taps or clicks away.

TimeTag organizes and groups all your activities so that instead of viewing your day as a long list of records, you can quickly see how your time was spent at a glance. Exporting is simple, and lets you generate spreadsheets or webpage reports to import to other apps or services.