The app makes it easy to check your data usage and purchase more data if necessary

The app was easy to use so he could track data usage.

The associated app makes it easy to activate the card before you leave

The app was easy to use and it did the rest of the set up on our iPhones with only a couple prompts

I would recommend this card and use an app like Facebook or Whatsapp to make phone calls or text using this data SIM

App: I was afraid that the app that is recommended to use with this SIM card would be buggy, but I have found that it works great

Download LINE - the popular free voice & video call app in Japan - & set the default country code to Japan (+81)

Their special app is very useful as it shows your data consumption and has a built-in option to top up, among others