If you like to work out in the gym this app is a great way to take along your own personal trainer. It shows you what muscles to work out, how much weight to lift, and how to vary your exercises. Lucas Campbell wrote this app and you can tell he took a lot of care with the exercise details as well as the app interface. You can create your own workout or have the app guide you. iPersonalTrainer will also track your progress. At $1.99 the app is well worth adding to your library of apps.
