Application Enhancer 2.6.1 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. We recommend checking the downloaded files with any free antivirus. Application Enhancer for Mac lies within System Tools, more precisely System Optimization. This free Mac application is a product of Unsanity LLC.
From the developer:
Application Enhancer (APE) is a system used in third-party products that helps them to enhance and redefine various applications behavior running on your system.
It is a combination of a Framework and a system daemon. Application Enhancer performs its task by loading plugins (Application Enhancer modules) containing executable code into the running applications.
You may want to check out more software for Mac, such as PDF Enhancer, Shared Menus Enhancer or Safari Enhancer, which might be related to Application Enhancer.