Sacred Songs and Solos was an 1877 hymn collection by the evangelical duo of Ira David Sankey and Dwight Lyman Moody. Together they compiled Christian songs and traveled throughout the United States and the United Kingdom calling people to God.

Today, SS&S still calls people to God, either through the book or the mobile app.

This app was developed through the efforts of ‘dzisan creative studios’ and ‘Acirfa Technologies’.