With over 100 workout options, HOLOFIT makes sure your cardio workouts are interactive, motivating, and fun! Run, cycle, ski, or row in 15 amazing worlds, use one of HIIT, Fat burn, or Time-attack programs, compete with other members of the community, and spend up to 400 calories in one session. What do I need for HOLOFIT? Optional: Compatible fitness machine. HOLOFIT works with all rowing machines, as well as all bikes and elliptical machines via a cadence sensor. Work out in Paris, Antarctica, Babylon, Tropical, Saturn, San Francisco, Underwater, Cyberpunk World, the amazing world of Troglodytes, and more! Measure calorie-burn, save your workout data and progress in our Android/iOS companion app. Use your bodyweight for rowing, running, cycling, skiing, and Combo full-body exercises, or connect HOLOFIT to your bike, rower, or elliptical to completely transform your workouts. HOLOFIT works on all bikes, rowers, and ellipticals.