No Internet required? You need bloody email verification first in order to use this app. It's not anonymous or private at all.
It's not working WTH!!?
Can't register an account with low internet
No longer works in offline mode. Pixel and Moto z sitting next to each other. Both in airplane mode but WiFi and BT on. Accessibility and auto network enabled. Messages never go until phones both have internet. Even then, about half the messages disappear and don't get delivered. It may have previously worked when both phones were on a WiFi network even if that net had no internet. Definitely doesn't work as described. Briar beta works over BT though.
This release improves connectivity and stability.