AppIcon is a convenient application that allows you to export all the icon images of various sizes that are required for iOS and Mac apps in a single action. You only need to prepare one single original image file for all the icons. After that, just drop it into AppIcon.
All types of PNG files are exported each in an instant.
Also, if the icon for the Mac app, you can export in one ICNS file.
Say goodbye to troublesome resize tasks.
AppIcon will accelerate your app development!
Compatibility: OS X 10.9 or later, 64-bit processor
More info - https://itunes.apple.com/us/app/appicon/id552721621?mt=12 
TO MAC USERS: If RAR password doesn't work, use this archive program:
RAR Expander 0.8.5 Beta 4 and extract password protected files without error.
TO WIN USERS: If RAR password doesn't work, use this archive program:
Latest Winrar and extract password protected files without error.
