WordAbout (by Gambit) [Universal]
Just released today a unique and fun word game. This one is quite challenging and has tons of levels, replay value and achievements.
How To Play:
Your goal is to transform your word to the goal word. Simple? Not quite! You have to change one letter at a time until your word becomes the goal word. Each letter you change must still result in a valid word.
It's free with 200 levels with 200 more challenges after you finish a level set. In app purchase is also available which gives 800 more levels and challenges.