Too easy
Yes, the user interface is rather nice, but its this very interface that makes manipulating the problems almost worthless. You can simply follow interface patterns without thinking about or even understanding what youre doing, and still arrive at the solutions. In addition, the problem sets are way too easy. I havent had to do algebra in 30 years, but I was able to get through this entire program in under 15 minutes. Its back to Khan Academy for me.
88Hoo about
Algebra Touch