Smart - Postal Calculator is an app that lets you calculate the various details of the Indian postal system. You can calculate the amount of your monthly income, the amount of your savings, the amount you'll need to pay in order to get your money back, and more.

The app lets you calculate all of these details for different savings plans, including the Public Provident Fund, the Senior Citizen Savings Scheme, the National Savings Certificate, the Recurring Deposit, the Monthly Income Plan, and more.

All of these plans are presented in detail in the app, so you can get a better idea of how much you'll need to save in order to get your money back. You can also create a report and send it to your customers in pdf format.