What is this app ?This app is for calculating the change amount,for example your shopping bill is 134 dollars or Rupee and you don't have exact amount , hence you give either 150 , 200, 500 or 1000. Now the return amount is calculated based on denomination given - actual amount. This app forecast the nearest denomination.Why should I use this app, I have in build calculator ?Nice question , but using calculator is a 5 step process but this app has cut down the process to 2 step . Try yourself.--Please provide your suggestion and i/p. Do inform us if you encounter any bugs.--By the way I got to know from our developers that there are some hidden easter eggs. Go ahead and find them.