What this site is for
This is not an encyclopedia of everything to see in Japan. It focuses on moments where unclear information can cost a traveler time, money or confidence: entry preparation, phone setup, airport arrival, tickets, payments, bookings, luggage and urgent help.
Who operates it
Japan Travel Tech is operated by 合同会社PROPS (PROPS LLC) in Japan. The editorial contact is info@props-with.jp.
Current evidence stage
The current edition is built from official government, tourism authority and transport-operator information. We do not label a result as field-tested or write “in our experience” unless PROPS LLC has actually performed and documented that test.
Where the site is going
Future field tests will add dated evidence from real devices, routes and services in Japan. Official rules and firsthand observations will remain visibly separated so readers know what each claim is based on.