Not bad for a free app. I have the latest iOS and the sound works fine. You get three free songs and you can play them with piano or xylophone sound. (There are more songs available but you have to pay for them.) Couple of draw backs: it only operates if the app is open, and it only plays one song at a time. Meaning, if you want a different song you have to go back to the menu and select it, it won't shuffle. You can play one song on repeat infinitely, which is a plus. We needed something to play a chime-like sound for our three month old that we didn't have to keep winding, and this was perfect. Plus, she loves it!

I love this app. What more could a girl ask for?