The recent updates have really made this app much worse. One of my favorite features was the best-time tracker that recorded every time cubes are solved and provided several useful averages. It was completely removed, along with the cube solver, and replaced with USELESS skins for the cube. Adding back the 2x2, 4x4, and 5x5 is a step in the right direction, but its very disappointing that a lot of the good features are still missing.
Ben65536 about Rubik's® Cube, v2.1