ATC Calculator for iOS

ATC Calc 2.0 has the following changes:- It fixes issues that stopped previous versions of ATC Calc from working with iOS 9.- The buttons and displayed time values are presented somewhat differently in an attempt to make them easier to read in all lighting situations.- It replaces the black-text-on-white-background/white-text-on-black-background toggle with a slider that adjusts the "brightness" of the background, buttons and display. It does this by adjusting how gray they are displayed.- It scales the buttons and displays to match the size of the screen that it is being run on.There is one small problem noted on some devices. On these devices, the brightness slider will sporadically not respond when touched. This is only an issues on a small number of devices and is a small problem compared to this app not working at all on iOS 9.