Downloadable computer software for use in fitness training and coaching; Downloadable software in the field of exercise and fitness for use by others to provide workout, fitness and exercise information, to manage a scheduling calendar, to build and configure workouts, to track fitness progress and workout statistics, to upload digital pictures, to manage workout plans, exercise plans, workout schedules, body composition and workout progress, to monitor, track and manage nutrition, to permit billing and invoicing, and to provide on-line training services; Downloadable software in the nature of a mobile application for designing, providing, tracking, and managing athletic and fitness workouts, training and coaching plans, and nutrition plans; downloadable software in the nature of a mobile application to enable users to search for, identify, and select fitness coaches based on their needs and to participate, manage, and track workouts and training based on their needs on mobile phones, mobile devices, tablets and handheld computers; downloadable software that enables users communicate using audio and video technology on a one-on-one live basis with fitness coaches and others participating in workouts, fitness programs, and online training programs; Downloadable computer software for use in wearable devices in the field of exercise, fitness, workouts, and health training