Suprised to see Peter Sunde, Leif Högberg & Linus Olsson push out their private
messaging for Android and iOS as closed-source unlock-ware:
https://heml.is/
(Warning: Self-ingratiating video. Fun-guy team shots)
Cheers,
--
Julian Oliver
PGP B6E9FD9A
http://julianoliver.com
http://criticalengineering.org