Secure and encrypted messaging systems

What do people use?

• Textsecure is mobile shared key encryption. Validated through phone numbers. Currently Android only, soon will run on iPhones, questionable if that will really be secure.
• Internet relay chat (IRC), use IRSSI terminal-application, has a plugin for encrypted chat
• Ranqzen (tibetan for freedom) one to many chat, currently being designed
• Cryptocat
• XMPP + OTR
• Retroshare
• PGP with Thunderbird
• Pidgin with OTR
• Tor
• Pond
• Tox. Text, video, audio