The site has some hard dependency of AMP, takes a long time to load when ampproject.org is blocked and then renders broken.
It looks very cool regardless, thanks for mentioning it.
How does this work? Do the two devices still need to be on some sort of net work accessible to each other? Two cell phones not on the same Wi-Fi are going to have a hard time talking to each other buy anything other than Bluetooth, no?
It uses only BLE. What's the point when Briar is a better alternative?
I think it supports both. There’s options for off grid that includes Bluetooth and multipeer connectivity, and options for multicast dns and relay servers. As for the why: it supports Android and iOS so if you don’t have an Android device, Briar is basically out.
Does Briar work on iOS?
No, only Android and any Android-derivative that can run .apk files. For more convenient installation, it's available on Google Play and F-Droid.