This app is designed to randomly pick Bingo numbers and display called numbers. You can mirror to an Apple TV, output to a projector via HDMI, share the app window to a group video app, or just show it on from your computer display. You can have the app pick random numbers or click and unclick numbers chosen from your Bingo ball picking cage. The app can optionally say the numbers aloud. Controls are simple. Tap the timer button to have the app auto-pick numbers every 2, 4, 6, 9, 12, or 15 seconds. SWITCH USERS: Users with physical challenges can choose a random new ball with the switch button, or press "1" on an attached keyboard. WANT MORE THEMES? Bingo Caller+ is a better version of this app which lets you choose from various seasonal themes. It's in the App Store.