Q.

[Expo ID Registration] Which smartphone operating systems does Expo ID work on?

A.

The following can be used:
Android OS
iOS
Please note that versions that are not supported during the event period will not be eligible.

https://www.expo2025.or.jp/wp/wp-content/themes/expo2025orjp_2022/assets/pdf/tickets-index/id_registration_manual_en.pdf