Fitness app of the day Workout Trainer (Android iPhone) Price: Free Skimble Inc brings Workout Trainer an all-round app that tells you how to exercise with a step-by-step guide backed with audio photo and video instructions which is packed with all the info you need. Choose your area of focus be it getting six-pack abs yoga weight loss or any other goal and get started. Join a new community of fellow fitness freaks and also share your workout success - big or small - on email Facebook and Twitter. (Read: 10 smartphone apps every woman should download) This app is