I have been using the fun, engaging and easy to use app called Piggy Banker. I have been wanting to save a few bucks for a not required, but desired item and have needed to track my savings. I discovered Piggy Banker a Windows Phone app that totally does what and I want and need for tracking. You can get it here: http://aka.ms/PiggyBanker. Just as useful i have been working with the kids where they put in an item they want and save for it. As the save money I update there item. They love to see the progress their making (and it makes them do their chores!).