Strong.app - Strenght training logger.
InTouch Technology - InTouch Technology's member lifecycle management solutions are built exclusively for the health & fitness industry.
wger - FLOSS workout, fitness and weight manager/tracker written with Django
Gymbag - Get your online store to start selling fitness products directly to your clients
Bolt - Workout Tracker - Track your progress in the gym and discover new workouts with the most intuitive workout tracker for weight lifting on the App Store.
AthleteTrax - AthleteTrax has developed a sports facility management software, making daily tasks easier at your ice rink, multi sport facility or recreational league.