Will not work without adding credit card details. Does but accept any card outside of Japan so Canadian and American cards do not work. Terrible app, avoid

No credit cards worked - some don’t even ask for cvc code. What a poorly developed app!

First off, I tried 5 different Canadian credit cards and the only one I could get to work was a Gold AMEX (my dad’s card which we won’t even be bringing on the trip). Second, I have tried on several attempts to login to the app, but no matter what time of day (JST or EST), the app seems to be under maintenance. Fast forward to 30 days before my first shinkansen ride, I planned to reserve an oversized baggage seat. I logged in fine, and was able to see what trains were available. However, the app timed out when I had to figure something out. And when I tried to log back in and try to make the reservation again, the app had gone back into maintenance and I have been unable to login in since. I’ve downloaded this app for about 2 months now, and I’d say of all the times I’ve tried to log in, I’ve only been successful maybe 3 times. Overall poor experience with attempting to book shinkansen tickets overseas, especially with the SmartEX app. Especially since I had higher expectations for this app after people and their website raved about its convenience.

このアプリの製作者は、その家名と先祖に恥をかかせます。クレジットカード認証は明らかに破綻しています。

I was hoping to be like that one person in the review who says they got the credit card registration to work, but alas.

This app can never authenticate a credit card issued outside of Japan. It is useless to even put on the App Store. I would put no star if possible.

The card worked for every other japanese train website.

😟

I can’t register because no Canadian credit card is accepted (error message).

The credit card check method that the back end system is using is flawed. I have used my credit card on other Japanese websites with no issues but if I try to register for the app on my phone via the app or via a browser on my laptop it fails 100% of the time