Base Ten Blocks

I just bought this in order to work on regrouping with my daughter. It does not allow you to regroup the blocks (having 11 tens in order to borrow). I am dissapointed

This app is simple to use and does what it’s supposed to do. Kids will have an easy time counting with base ten blocks and and the app regroups without a hitch. I like that you can add or take away blocks easily and at any time. Highly recommended for home or classroom use.

I almost didn't buy this because the only two ratings are negative, but I decided to go with it rather than the higher rated similar app because this one includes thousands cubes and the other one doesn't. Now that I've got it, I don't see what the problem is, and I can only assume the negative ratings are from competing developers since there are no reviews explaining the negative ratings. This app is simple, but it does what it says it does. I'd like it even more if there were a more graphic representation of the regrouping process.