Bingo started with paper cards and daubers, but now digital play has simplified...

https://emilysgreatjournals.quantlynix.com/posts/tropic-like-it-s-hot-picture-bingo-how-does-the-3x3-card-work

Bingo started with paper cards and daubers, but now digital play has simplified the game. Auto-dabbers mark numbers automatically, so you don’t miss a call. Popular 90-ball games, with balls numbered 1 to 90, are easy to join on your mobile