Bingo changes shape when it moves beyond the hall. A clear digital interface...

https://highstylife.com/why-do-some-online-bingo-games-look-cluttered-on-small-screens/

Bingo changes shape when it moves beyond the hall. A clear digital interface can make the number grid easier to follow, while the choice between 75-ball and 90-ball formats affects the pace and feel of a game