Workout Tracker uses your phone's Location Services to track you during your hikes, cycling, running, jogging, or any other activity. The program includes graphing, mapping, using a standard formatted GPX file. This application has been tested for accuracy, and reports within 5% of using a cycle-computer, or other land-based calculation. There is no account to sign-up for, no website to visit. All data is currently only stored on your phone. Trial only allows saving of 1 workout. Purchase to save up to 30 on your phone. Now provides anonymous sharing of .gpx files, and automatic uploading of workouts to trainingpeaks.com website. Training Peaks offers free or paid accounts to track your workouts.