Word FreeCell app for iPhone and iPad

For those who love FreeCell and word games.
Your goal is to rearrange letters to match the original words.

A play movie is available at http://www.youtube.com/watch?v=rXzsRIZOoIQ

There are five word places at the top of the screen.
Letters that compose the words are shuffled and cascaded from right to left at the bottom of the screen.
There are three free cells at the middle of the screen.

Drag a letter from cascades or free cell.
Then drop it to either of other cascades, free cells or word places.
Repeat moving letters until you complete all the words.

Note that letters can be cascaded only when they compose any subset of a spell.
For instance, if there is a word "free" in word places, you can place a letter f only before "r", "re" or "ree" in cascades.

Subsets are marked in dark circles.
Cascades or words to which you can drop a letter are also highlighted in red.