This game is pretty addicting. I am a fan of the physical game Boggle, and this game is very much like that.
Some tips: If you want a high score, always look for an "S" on the screen. Also look for "ER" or "ED" and add those suffixes to any word that works with them. "Y" or "LY" can also sometimes extend your words. Make sure you make all the word combinations you can think of before moving to the next area. For example:
M I B
E T D
A R P
You may start with Mite, then Bite. Dite isn't a word, So then Diet. Die, and Tie. Then Time. Tear, Ear, Art, Tare, Tarp, Are, Eat, Meat, Ate, Rate, etc. If possible, go around the board like this changing only one or two letters in the word and making sure to find all similar words and rhymes before moving on.
Word Craft counts two-letter words, but I find that the amount of time you gain from completing a two-letter word is hardly worth it. However, if you are stalling and don't see any three-letter or longer words, a two-letter word is still worth completing because you'll be awarded 20 points (30 points for a three-letter and so on).
Anyway, this is a great game, @PaulSonny . I hope to see more from you, and I hope you make some sales.