The app allows users to create packages ready to be transmitted using the Application Loader (by Apple and included with the Developer tools) to the Mac App Store. It’s designed as a tool for any App Store developer who wants to submit an app to the store using an alternate method to internal XCode sending mechanism. Version 2.3.1 is a maintenance upgrade.
Product Builder 2.3.1 requires macOS 10.10 or higher. It costs $4.99 and is available at the Mac App Store.