Advent Youth Sing, also known as AY Sing, is a free hymnal app designed for Adventist Youths. It is available on Android devices and developed by Muscovado. With this app, users can access and enjoy the first 100 Advent Youth Sing songs from their phone or tablet. The app is perfect for AY Sessions as it provides a familiar hymnal for Seventh-day Adventist Youths to sing along to.

The app interface is user-friendly and easy to navigate. Users can easily find the songs they want to sing and even create their own playlists. The app also has a search function that allows users to search for specific songs or browse through the list of available hymns. Overall, Advent Youth Sing is a great app for Adventist Youths who want to sing along to their favorite hymns during AY Sessions or any other gathering.