They offer a version with Hymns and one with Children's Songs. Both are available in Spanish. You can download the lite version for free to try it out.
Each song has a handful of high quality background pictures to choose from and the music is from the recordings done by the church.
See it! Three-year old girl singing along to "I Am a Child of God" on an iPad with LDS Children's Sing-Along. Learn more about the app at http://ldssingalong.com.
Click the video below to see how it works!