Besides calculating Sales Tax, Subtotal will also let you set the discounts based on percentage. Furthermore, you can type in your end amount to check what the value is before tax.

Set your local tax value and it will remember it for you the next time you open the app.

Swipe up on the subtotal to view what you saved after discount.

Instant calculations. All the calculations are done instantly as you type.

In-app purchases allow the removal of ads from the application.