Asset Catalogue Creator takes any image and creates the full set of iOS icons for you. Unlike other icon generators these are produced in the latest Asset Catalog format allowing you to drag a single file into Xcode and have all the correctly sized and named icons identified and in the right place.

As of iOS 7 there 16 different icon sizes required for a universal app! Even if you already have an automated way of batch resizing these it’s still a tedious process to drag all of these icons into their respective spots and then deal with any conflicts.

This is the free version of Asset Catalog Creator, which is limited to creation iOS icons. Via an in app purchase you can unlock the ability to also create OSX icons as well as iOS splash screens.

You can see it working here http://youtu.be/UEy-Bphy28c

INSTRUCTIONS
Drop an image in (png, jpg or pdf etc should all work fine)
Select your output directory
Select what you want to export (iOS Icons, OSX Icons or iOS Splash)
Press ‘Create Asset Catalog’

A new directory will be created called ‘images.xcassets’
Drag this into your Xcode project
Select the newly created Asset Catalog as your desired icon/splash

ADDITIONAL NOTES
If you're making an iOS icon, for best results, start with a square image with dimensions anywhere above 152x152

If you're making an OSX icon, for best results, start with a square image with dimensions anywhere above 1024x124

If you're making splash screens, as these are all different shapes, your images will be stretched to match the various dimensions. If this isn't desirable, on a universal app, begin by making the following input images, as required:
iPhone 4 640 x 960
iPhone 5 640 x 1136
iPad Landscape 2048 x 1536
iPad Portrait 1536 x 2048
Create asset catalogs for each starting image and merge the best results into a single catalog, using Xcode

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