This is Forcing Matrix Magic helper for professional magicians.
Forcing Matrix is quite old principle which is nicely described on deceptionary website. This app should help you to create forcing matrixes on the go.
Please note this will not teach you how to use forcing matrix - this is just a helper to construct the matrix itself!
You can play with the online interactive version here: https://bit.ly/3ppOrDo You may be surprised to learn the result you gonna select is 666!
The algorithm in this app is exactly the same as the one online version is using.
Of course nobody is forcing you to buy this app - you can keep happily using the website. This has been developed for those who were complaining about not being online all the time. This application doesnt need internet connection to do the calculations!