Before going to the store, many people make a plan on paper purchases, and rightly so. After making a purchase, many people write down their costs, and also doing the right thing. We disclaim bills. Application "Shopper" offers a different approach - dictate by the plan of purchases in one click to make a purchase note, dictate the amount. And this is all! All your purchases into account! In the same way it is possible to take into account other costs - taxes, interest on loans, penalties, etc.