AssetCreator 2.1 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free software for Mac OS X is an intellectual property of Bitodi Oy. The program belongs to Design & Photo Tools. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe.
From the developer:
AssetCreator is a simple program that helps you create and resize icon assets for your iOS and Mac app projects. The tool generates Xcode icon asset catalogs (Images.xcassets) automatically for iPhone apps, iPad apps, Apple Watch apps, and Mac apps. The results can be easily revealed in Finder.
You may want to check out more Mac applications, such as Smith Chart for Mac or Movie2Shot, which might be related to AssetCreator.