This program was created for iOS and OS X app developers who need to immediately generate icons for the tools they built. Icon Set Creator works with a wide variety of image formats, supports drag-and-drop actions, and takes minimum time to generate the quality files you need.
All you need to in order to generate the icons you need is to drag-and-drop the original image file, select the proper output profile (iOS, OS X or watchOS), and choose a destination folder. After the utility exports the icon files to the selected destination folder, the directory is automatically opened and you can choose which of the files is perfect for your iOS or OS X application.
In my testing, the program worked perfectly. Icon Set Creator was very simple to configure and offered me high-quality output files.
My only issue with the application is that it automatically generates the entire set of icons, with different resolutions. You cannot export a single icon that has the preferred resolution. Still, this aspect isn't a big deal as the program does an good job overall.
In conclusion, this utility proves to be a reliable solution for creating icons for your iOS and OS X applications. Plus, it comes without a price tag.