Best app I've used for cube solving – SKY Cube Master Review

I've solved the cube many times, but sometimes I forget the final steps. This app completely explains all the algorithms. Just tap the side menu and pick from the list, PLL or OLL. It's $5 to unlock everything which I think is reasonable. You can go through each step or play them all at once. Very good resource.
Review by B0ne5tee1 on SKY Cube Master.