DockIconChecker 1.0.2 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. The bundle identifier for DockIconChecker for Mac is com.climbapp.DockIconChecker.
The latest version of the application can be installed on Mac OS X 10.7 or later. The most popular version of the tool is 1.0. We recommend checking the downloaded files with any free antivirus. The actual developer of this Mac application is Climb App. The software lies within Design & Photo Tools, more precisely Viewers & Editors.
From the developer:
DockIconChecker is a tool for Mac application developers. This application can preview application icons on your dock without making .icns files and building in dummy application for test. It works by drag and drop, so it's possible to compare and examine multiple icons quickly.
You may want to check out more Mac applications, such as QuickShow OSX, Stone Studio or PhotoDesireeExpress, which might be similar to DockIconChecker.