RunX, LLC is proud to introduce RunX Fit 1.0, their new no-cost iOS app that empowers runners of all skill levels with pace coaching and heart rate fitness tracking. RunX Fit features training tools to help users improve their fitness and run faster. Users are given a goal pace to run at based on their current fitness level. RunX Fit measures and tracks the users' fitness improvement with patented, run-specific heart rate based fitness tracking tools. RunX Fit 1.0 is Free and can be downloaded from iTunes.