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A new app called REPS, however, actually helps you train. By that, we mean picking up your iPhone and exercising with it like you would with a dumbbell.
Let's get something straight: no matter how you spin this, the weight of the iPhone is not enough for most exercise routines. There are, however, certain exercises which can be done with little or no weight, and there REPS could be helpful.
The features include setting a weight loss target for your exercise, real-time rep counter, motivational audio messages (Full Metal Jacket comes to mind), rep notification by vibration and sound alert, and game mode, which makes this probably the closest thing you'll get to Wii Fit without the Wii.
REPS is available in the App Store for $2.99.
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