Wickr - Wickr is a free end-to-end encrypted text, video, picture and voice messenger with full sender...
Seald - Keep your conversations secure, everywhere.
Confide - On the off chance that you need to get your messages private and encoded then utilize Confide that will fill in as your own and classified courier.
Keybase Chat - End-to-end encrypted chat built into Keybase
Bleep - Bleep is an insured and secure messaging application by the Bit Torrent that you can use for valuing the private and safe communications.
Spike - Spike solves businesses' communication chaos by bringing together email, team chat, collaborative docs, and meetings, into one feed.