ShingleCalc - Sum and Average calculator

ShingleCalc 1.1 is very simple tool for calculating sum, average and count of given numbers.
By tapping tap to edit or top of the screen you can hide or show the keyboard. Number of decimals can be set from the settings. You can delete individual numbers from the set by simply swiping over the number.
Results can be sent by email for further use, if needed. ShingleCalc will remember the set also when application is closed or during coming phone calls, so you never lose your work.