Twinme - Twinme – Private Messenger is a free, secure, instant, and high-definition messaging app that protects your privacy along with giving you full control over each of your relationships and contents.
Wickr - Wickr is a free end-to-end encrypted text, video, picture and voice messenger with full sender...
Textra - Textra is a seriously beautiful, feature rich SMS and MMS app.
Burn Note - Burn Note is the name of a continuous private messaging utilizing which you can have an ongoing private discussion with your companions or any individual who is at Burn Note.
Material Messaging - Material Messaging is a beautiful communication app that lets you send and receive SMS and MMS messages using the intuitive interface while giving you complete control over every aspect of your messaging experience.
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.