Signal is outstanding. I've convinced a few dozen friends and coworkers to migrate over, I'm a member of several group chats, and everything works great. There

Signal is outstanding. I've convinced a few dozen friends and coworkers to migrate over, I'm a member of several group chats, and everything works great. There were a few issues last year with group chats and keys breaking pretty badly, but everything's been a lot more polished (and idiot-resistant) since the last major overhaul a few months ago.