"And they cast lots for them, and the lot fell on Matthias, and he was numbered with the eleven apostles." - Acts 1:26
The Cast Lots app allows you to easily create/load lists and randomly select one of the options.
This app is especially helpful in deciding who to pray for. Load in a list of the members at your church, and begin praying for them daily. This application also has the capability of loading in the contacts from your phone.