Test de Léger is a sports lifestyle app that calculates the maximum aerobic speed (VMA) and estimates the maximum oxygen consumption. The app requires a minimum 20-meter track with four markers to define two lines separated by 20 meters. Users run between the markers while following the audible signals from the pocket terminal.

The latest version, 0.99, now allows for warm-up periods of 1 to 2 minutes. The previous version, 0.98, includes significant improvements, while the initial version, 0.9, is still in beta. It is important to note that Test de Léger is still in development and the developer, TomTooM, welcomes feedback from users.

Overall, Test de Léger is a useful tool for athletes and fitness enthusiasts who want to track their VMA and estimate their maximum oxygen consumption.