Fun and flawed.
A few fun features on the iPhone version made this worth loading on my iPad. I like the "teacher mode", which gently suggests alternative words that would yield better scores. You can play by yourself or pass the mobile to play your on-site friends. Online play is also possible but I personally don't like that and would not recommend that option for children. The scores are calculated for you, which takes away the small element of math practice. It frustrates me for solo play that I can't shuffle my tiles while computer players take turns.
How I Use It
The available options make this useful for a range of levels. You may also choose different languages including Spanish, French, Portuguese, and Italian. I see this as an acceptable app to use for down time.