When you are starting out on a new fitness journey, either from scratch or just to try out new types of fitness routines, why not try using a fitness app to help you keep track of your progress and help keep your motivation levels up?   They are also perfect for those of us who don’t like working out in front of everyone else at the gym, or who only have time to fit in a quick workout after getting home from work, with interruptions from the dog and the…