App: Asset Catalog Creator
Developer: BRIDGETECH SOLUTIONS LIMITED
Genres: Developer Tools, Utilities

Asset Catalog Creator takes any image & turns it into a complete & ready-to-use app icon. It supports every type of icon you'll ever need for any of Apple's platforms; iOS, iPadOS, watchOS, tvOS, macOS etc. It uses the xcasset catalog format & it's always updated for the very latest devices & software. 

It doesn't just do app icons. It can make any icon within your app; converting your image into all the required 1x, 2x & 3x formats. If you're using vector-based iconography you can preserve all your vector data during the conversion & output your icons as pdfs, while still having control over the size of the image. It even includes a list of preset sizes for standard interface elements, such as tab bar icons, navbar icons etc.

As well as in-app icons, it also supports creating everything you need for Complications, iMessage, & Game Center.

As of iOS 15, there are 25 different image sizes required to make an iPhone/iPad app!  Asset Catalog Creator is configured with well over 100 image dimension requirements. You’ll never need to look a size up again.

Asset Catalog Creator is designed to be quick & easy to use & fit seamlessly into your workflow. All you need to do is drag in an image, point the app to where your project is, pick your icon type & export. The app finds the existing asset catalog(s) & has advanced merging abilities that allow it to append or overwrite based on your choices.

If you’ve never used Asset Catalogs in your apps before, now is a great time to start. You’ll find managing & organising your image files much easier & you’ll also benefit from improved performance & reduced app install size, thanks to the smarter way asset catalogs are compiled & archived into binaries.

LIST OF SUPPORTED ASSET TYPES
iOS
App Icon, Launch Screen, iMessage Icon, CarPlay

watchOS
App Icon, Complication (including vector based complications)

tvOS
App Icon, Launch Screen, Top Shelf, Top Shelf Wide

tvOS Game Centre
Leaderboard, Dashboard

macOS
App Icon

Universal
Universal & device-specific image sets, in @1x, @2x (Retina) & @3x (Retina HD variants or as single vectors )
Catalyst Icons

FEATURES
Up-to-date for all the latest devices iOS 15 with iPhone 13, Apple Watch Series 7, iPad Pro & 4K Apple TV icons, macOS Catalina etc.
Support for importing images in numerous formats: png, jpg, bmp, pdf, svg & more
Batch exporting
Automatic best image variant selection: add images at multiple sizes & have the closest match used for each asset
Advanced image validations, letting you know when images are to be upscaled etc.
Retaining vector images; automatically converting vector-based PDFs & SVGs into PDF assets
Support for merging new assets into existing catalogs whilst maintaining your existing folder hierarchy
Automatic image naming & renaming
tvOS parallax icon editing 
Preset image sizes for assets used in-app, i.e. tab bar button size, nav title size etc.
Automatic alpha removal handling, removing alpha channels where necessary to ensure App Store Connect acceptance
Fully featured command-line interface
Shadow & corner rounding effects
Adjustable image padding

You can watch a demo of the app here http://youtu.be/UEy-Bphy28c

STANDARD & PRO APP VERSIONS
The app is available in two different versions, Asset Catalog Creator & Asset Catalog Creator Pro. Both versions have an identical set of features but have different pricing structures to suit your preference. Asset Catalog Creator gives you the ability to make iOS app icons out-of-the-box & you need to unlock the ability to create each additional type of icon via in-app purchases. The in-app purchases are all non-consumable so will be unlocked permanently & can be used across all of your computers. The difference with the Pro version is that every type of icon etc. is unlocked out-of-the-box & there is nothing additional in the app for you to purchase.

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Terms of Use
http://bit.ly/2KylV0Y

Release notes:
Changed iOS icon output format to the Xcode 14 catalog format.
Other minor fixes and optimisations.