This is what I suggest..
I will still have Viber but it is not on all my devices. It has encryption but doesn't really tout it.
Text secure is great but nobody uses it. And it only works on my phone.
I propose leaving red phone for calls. Uninstalling text secure.
Telegram can even work on multiple phones under the primary phone number.. What's app and Viber can't do that. Facebook can of course but it's facebook.
Telegram.. Phones.. Tablets.. Desktop.
Encrypted I think in usual chats. They work on all devices.
Secure chats negotiate keys directly between the 2 parties. Most secure. But only works on your device you started it on.. It seems.
Downside it is made my Russians.. Note I didn't say The Russians.
But seems to really emphasize security.
More popular than text secure by an order of magnitude.
They have 100k prize for flaws. Some guy got half of it when he found half a flaw.
So my understanding is probably no back doors?
Anyhow seems like we should switch to usually using that instead of Viber.. Non secure chats.. But I think they are still encrypted. That way they work on all devices.
But when necessary can go into secure chat.
I will still have Viber of course. Many friends on it here.. But I plan to keep telegram and I've removed text secure but not red phone.
http://security.stackexchange.com/questions/49782/is-telegram-secure