Perfect Dimension has Convertizo 3 (iTunes Link) for the iPhone, iPod Touch, and iPad in the iTunes App Store for FREE (regularly $3.99) for a limited time.

Convertizo 3 is an accurate, simple and reliable unit converter for your iPhone and iPad that is built from the ground up to take advantage of the latest iOS enhancements including Slide Over and Split Screen multitasking.

Convertizo 3 automatically imports the latest exchange rates so your currency conversions are always up to date. 100s of units are available, with more added on request and unlike other converters, also includes both metric (US) and imperial units.