This bingo machine uses 90 balls.
The 75 balls version is available as a separate app below:
https://play.google.com/store/apps/details?id=jp.aosystem.bingomachine

Bingo machine simulator.
Randomly pick out balls with numbers from 1 to 90 written on them.
The history of retrieved numbers is also displayed.

It also has a card function, so you can enjoy a bingo game with multiple people just by using this app. One person acts as the facilitator and handles the bingo lottery machine. Others handle the bingo cards as participants.

There is a function to read out the ball that has been taken out. Everyone can enjoy bingo parties, events, year-end parties, New Year's parties, and more for free.

You cannot enjoy playing bingo alone.
Install the app on multiple people's devices.
The facilitator will use the bingo lottery function.
Participants use the bingo card feature.
There is no linkage function between devices.
It is intended for use by multiple people gathered in the same place at parties, etc.