I have blogged about this app previously. It is a free app (yeah!). My students really love this app. One enticing feature is that the students can compete against their classmates. Each student has picked their own character. They play against others--the app picks their competitors. The students get so excited when they see their classmates. It really increases their motivation to do well.
I have a student that is very low academically and has a very limited attention span and this game keeps him "glued" to the iPad the whole time. He likes the competition and the activities. I also find that even though he is still working on the very basics, the questions are presented in a variety of ways.
I also like the data shown on this app. Here is a snap shot of the information. It shows the students names, how many questions they have completed, the time they have spend on the app and the last time they played.
Then, you can get further information by looking at each student's data.
You can get more detailed information about the different questions and concepts.
It has taken a couple of days for the loud cheering to become quiet excitement when they work on the app. I think all that is a good thing though.