How is it different from Japan Connected-free Wi-Fi?
Japan Wi-Fi Auto-connect is a sister app of Japan Connected-free Wi-Fi, created as an automatic connection version.
With Japan Connected-free Wi-Fi, at a Wi-Fi spot you choose a Wi-Fi at your own timing, and tap a button on the app to connect to the internet. With Japan Wi-Fi Auto-connect these procedures have been automated to make it easier to use free Wi-Fi services.
There are Wi-Fi and functions that only support Japan Connected-free Wi-Fi, so please use both apps as necessary.