This app is an augumented reality animation of a 16 variable Karnaugh-map. Placing it on surface should be done in a manner similar to other AR-Core apps, that is, circle your device's camera facing a surface and wait for a white grid to show up, then tap the position where you want to anchor it and the animation should start.

Karnaugh maps are essentially Venn diagrams that are structured to grow to many variables (sets, propositions or gates) via a process of folding a page by alternate horizontal and vertical folds, as described by Figure 8 at:

http://www.csun.edu/~jmotil/ccSetNums2.pdf