The present invention provides a mechanism to change how mobile device applications, particularly Android applications, work; essentially selectively modifying their behavior. Where an application provides a useful operation but also has functionality that can be detrimental to the desired action of a device, use of the application becomes problematic. The present invention provides a method of modifying the use of the application without invasive reprogramming of the code. The present invention provides a means to make modifications to the functionality without modifying the application. As a result, performance of the desired outcome is not affected and because there is no modification of the actual software, legal boundaries are maintained.