The application helps to solve the problem of choosing between several alternatives. This is not just a coin toss where the choice is based on the generation of a random value. The main feature is that the application provides a quantitative estimate based on your preferences and subjective opinion. For calculating the best result the program contains a mathematical algorithm from the Theory of Decision Making which is called the Hierarchy Analysis Method. (https://en.wikipedia.org/wiki/Analytic_hierarchy_process) For a quick introduction to the program is recommended to run the example.
The Lite version allows you to enter a maximum of 3 criteria and 3 alternatives which is enough for most everyday tasks. If you want to increase the number of criteria and alternatives to 5 or you just like the idea of the application and you want to support the developer then buy the full version.