The 50/30/20 rule is a popular budgeting technique. Use this calculator to figure out how to spend your money.

The app also shows you a personalized pie chart of your expenses ... expenses and savings goals and calculates your monthly cash flow. The PocketGuard app is available for both iOS (4.6 stars ...

You also enter your current income, amount saved for retirement and monthly savings. The calculator asks when you plan to start receiving Social Security benefits and how much you plan to spend ...