Can anyone recommend a good workout app? I've tried ones like iFitness and Gym Goal Lite, but none of them allow what I want (and what a workout app should have). The ability to make your own workouts. Take one type of exercise (such as bicep curls) and add it to your workout routine for that day, and have perhaps a three day split with workouts in each. The ability to 'check off' the workout when you finish it would be terrific too. A simply 'log your custom workout routine' app would be incredible.