It will ask you for $10 for the bulk of the material. – Learn Thai - Free WordPower Review

I didn’t read the reviews very far, and a few explained that what you get for free isn’t worth the download. YouTube is actually more useful for beginners. After spending the $10, it is useful for learning new vocabulary in one’s down time. The sentence examples they give with many of the words are helpful. The flash cards are all reading Thai, so I think this is pretty good for a “high beginner” or lower intermediate level person. Kind of a gimmick as a free version. Not a lot of better apps out there yet.
Review by Taro Mochi on Learn Thai - Free WordPower.