Meet the ROCK 360: an ab trainer that uses 360-degree motion to give your muscles a good workout. As you can tell, the design is inspired by the ab-wheel, but relies on 360-degree movement to push your body harder. The companion app for the device helps you stay on track. The ROCK 360 lets you try rolling obliques, twisting planks, 360-degree sit-ups, and other challenging moves.
The mobile app is available for iOS and Android devices. You get a phone clip attachment with your purchase as well. The ROCK 360 trainer is available for under $90 at this time.