Doesn't work Freezes when entering id and password. Does not work.
Rakuten phone is call app that can save the smartphone of call charges by using a telephone line number as it is.
"Rakuten mail" is a free e-mail service for the application which you can use the Contact your customers Rakuten mobile. It offers the domain of "@ rakuten.jp".
It will be assigned easily from the phone app you are using always the optimism phone prefix "0037-68"!