I researched online messaging apps WhatsApp (owned by Facebook), Telegram and Signal. Of the three, my review indicated quite clearly that ‘Signal’ is the best at assuring privacy.
A comment from a FReeper about Signal. Just a rumor? Maybe. Will check it out. No need to jump to any conclusions.
https://freerepublic.com/focus/f-news/3922560/posts?page=18#18
I’ll check into it along with any alternatives, etc.
https://en.wikipedia.org/wiki/Signal_(software)#Limitations
(worth reading and consideration)
Whisper Systems
https://en.wikipedia.org/wiki/Whisper_Systems
Signal might be the best app out there for its purpose. I wasn’t trying to pile negatives on it. Just looking and will look some more. I’m behind on smartphone stuff and will start fiddling with it. Needed to start using a couple of phones with a VPN anyway.