This isn't a review, so much as a note, but we'd like to note that this app can be used with the optional $99 Piano Apprentice keyboard, featuring keys that light up when you're supposed to play them.
Learn to play piano the easy way with Piano Apprentice! Piano lesson videos are provided by The Piano Guy, a.k.a. Scott Houston. Just press "Piano Lessons," pick the song you want to learn and he will show you how easy it is to play popular melodies. Start with the Right Hand alone, then the Left. Once those are mastered he will show you how to put your hands together.
If you are using the Ion Piano Apprentice keyboard, the notes will light up along with Scott’s hands. Follow the lights and begin playing music instantly.
Or, if you want to learn to read notes, select “Sheet Music” from the home screen. Then, you can choose to watch a basic tutorial on reading notes, or just dive right in to the song of your choice. Speed controls are provided for controlling the playback tempo, so you can learn at your own pace.
Of course you can just have fun playing the piano and making up your own melodies by selecting "Piano Jam."