Asset Catalog Creator takes any image and creates a full set of icons, launch screens or pretty much any other type of image that you’ll need to make an app on any of Apple’s platforms. There's support for iOS, tvOS, watchOS, iMessages.....everything.
We have been using Asset Catalog Creator for our iOS developments at ReachOut.global and it has been great! It is fast and simple to use, even if you wish to update your app icons in xcode, you just need to replace your .xcassets file and you are ready to go.
