AppIcon Assets Maker 1.4 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. We recommend checking the downloaded files with any free antivirus. The actual developer of this Mac application is Shuji Fukumoto. The software lies within Theming Tools, more precisely Icons & cursors.
From the developer:
AppIcon Assets Maker is an icon creator that generates various required-size images from one image. You can drag the generated folder onto Xcode's Assets pane to register the icons. The resulting icons supports iOS (include iPhone, iPad, and AppleWatch) and OS X. You may use regular square and 1024×1024 sized images. It also supports free size and corner crop.
You may want to check out more software for Mac, such as Make The Cut, Video Caption Maker or AppIcon Generator, which might be related to AppIcon Assets Maker.
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