For those into tracking your steps count, Pacer is one such app that I highly recommend. It is very simple to use, FREE to download (for Android atleast, not sure about iOS) and for those whi needs more than just steps counts, calories burnt record, they have a premium offers in which you will find tutors and groups in the similar programs. Lots of encouragements and targets. The premium costs are also reasonable and not compicated at all. The best part is you don't need internet for it to work. You just need to keep your phone with you in your purse or pocket in order for it to record. I enjoy this app a lot and it is really an encouragement to keeping fit.