Downloadable mobile applications for gaining muscles, endurance, maximal strength and getting fit; Downloadable mobile applications for providing more comprehensive workouts; Downloadable mobile applications for providing customized classic routines designed by experts; Downloadable mobile applications for providing a rich exercise database and instructions for users of different levels; Downloadable mobile applications for easily saving and tracking exercise data; Downloadable mobile applications for showing training results with intuitive statistics and charts; Downloadable mobile applications for editing, creating and adding workout routines to users' personal databases; Downloadable mobile applications for correcting users' exercise forms with explicit visual and literal instructions; Downloadable mobile applications for calculating user's one-repetition maximum according to the benchmark chosen by the user; Downloadable mobile applications for easily updating and changing the sets and repetitions of the exercises by the users to keep their own pace