Critical Path Software is a mobile application development company, based in Portland, Oregon, built on a foundation of pioneering the growth of new technologies since 1991. The company was one of the first developers to create mobile experiences for the iPhone, Android and Windows Phone 7 platforms.

Critical Path Software has helped create mobiles apps in categories such as lifestyle, shopping, health and fitness and travel.

eBay announced acquisition of Critical Path Software in December, 2010.