■Main features of the Rakuten Mobile SIM App.
・You can check the used data volume or remaining data volume from a graph at a glance.
・You can purchase Additional High-Speed Data.
・You can easily perform the APN settings.
You can view the APN information for data transmission.

For details about the Rakuten Mobile Prepaid SIM go to the following website.
■Rakuten Mobile Prepaid SIM
URL: http://mobile.rakuten.co.jp/prepaid/en/