Limited functionality for price – Grid Multiplication Review

I love that there is an app that teaches the grid method. This method helps a child understand the traditional algorithm better. However, the price is too high. It can't go beyond 3 digits by 2 digits. That was disappointing especially when it's a $4 app. I personally think it would be a better value for these basic multiplication methods to be combined into one app for $4 or $6. I won't by another one. Pencil and paper will work just fine.
Review by PushPLAYLearning on Grid Multiplication.