iTrackLists is a simple to use to-do app. It helps you track your to-do lists in a clear and organized way. The main screen is to track the main to-dos in some categories, users can navigate to the next level to create small to-dos for each big category. Once youve done one of the, you can mark your finishing status by simply tapping on each of them. Also, this app enabled local notification, it means when you do no use your app and youve set a reminder time previously, when the time reaches but you still not finishing that to-do list, youll receive a reminder notification on your phone. Wonderful! Isnt it. Try it and make your life easier ^_^