Perf allows you to manage your endurance sports performance (walking, jogging, swimming, cycling, etc.) as well as your weight and measurements. It manages the following data: sport, distance, time, time, consumption, shape, speed and maximum speed. It makes it possible to keep a history of the different types of performance day after day and to exploit the data of the heart rate monitors in the form of a graph. It also tracks your fitness weight and other characteristics such as fat content or body mass index. Due to its user-friendly interface, it is easy to use. This program was developed by EuropeSoftwares in JAVA and XML technology. It therefore requires Oracle’s JAVA runtime to run on operating systems such as Windows, Linux, Macintosh and Solaris.