自動で九九が覚えられる

It is an educational app called [Kukupi].

Between 8:00 am and 5:00 pm
every hour
any one of the multiplication tables
It will read out automatically.

with this app
Like BGM at random moments every day
You can create an environment where you can hear the multiplication table
You can memorize multiplication tables naturally without difficulty.

It is effective to leave it installed on the old surplus smartphone.


*For smartphones with battery saving mode
"Automatic startup and background services may not work correctly."
In that case, from the individual app settings on the settings screen, auto-start and background
"Please allow the service."