StoreShotMaker 1.4 for Mac was available as a free download on our software library. This software for Mac OS X was originally produced by Acacia Lateral Technologies Pty., Ltd. The program lies within Theming Tools, more precisely Icons & cursors.
From the developer:
StoreShotMaker is designed to assist Apple and Android developers quickly generate all of the standard screen shot and icon sizes required for the App Store. StoreShotMaker will let you spend your time developing killer apps and take hours of drudgery out of the final deployment process.
You may want to check out more Mac applications, such as Iconographer X, LeopardDocks or Screen Crosshair, which might be related to StoreShotMaker.