The Budgetmanager app is an easy weekly cash book, where it becomes a sport for everyone at some point to keep track of this. What you save at the end of the week goes right… into the piggy bank. The DSR Budget Manager calculates after each entry how much you can still spend that day. You can also easily see what is left to use the rest of the week.
Been to the store? Put your expenses directly in the app. At the end of the week you should get something in your piggy bank. If not, try that next week.