10 Essential iPhone Apps for RunnersWhether you want to try out new routes, strive to be faster, have better endurance or even lose a little weight, runners (and want-to-be runners) can turn to the following 10 iPhone apps for a little more variety in their training regimens: 1. RunKeeper Pro RunKeeper Pro is probably the most well-known of the running apps on this list. This is a feature-rich app that enables GPS tracking, distance
