Bingo has evolved from paper cards to digital play, making it easier and faster...

https://measuralogic.com/what-happened-to-the-bingo-card-the-technology-reinventing-a-classic-game/

Bingo has evolved from paper cards to digital play, making it easier and faster to enjoy 90-ball games on your phone. Auto-dabbers automatically mark numbers, so you don’t miss a beat, especially during busy rounds