Don't even bother buying an IC card reader, this app is useless... Tried using the app with my android Phone, it didn't work. I bought an IC card reader to try and use it with my PC but it didn't work either. Followed every step and tried 4 different browsers.... It just sends me to the home page after inputting correctly my password. Looking at the reviews no one can use it, terrible. After 5 years in Japan I'm not even surprised anymore, online stuff has never worked.
マイナポータル is an application for using the My Number Card in various online administrative services
It requires a dedicated installer in addition to the Chrome extension
It is compatible with Windows 11, Windows 10 (32bit/64bit), macOS 13 Ventura, macOS 12 Monterey, and macOS 11 Big Sur
The current version is Ver32 (2023/9/19) with minor improvements