From the article: “Standard SMS isn’t secure, and while many of the most popular messaging apps use end-to-end encryption, they can still leave you exposed. It’s time to look for a mobile messaging solution that’s more secure, grants more privacy, and gives you a place where you can talk more freely. Listed below are three free apps that allow you to send safely encrypted messages on your phone, for when things really do need to stay on the down-low…
Signal: Encryption shouldn’t be synonymous with bad design. Check out Signal, an app made by the crew at Open Whisper Systems that allows for secure, encrypted text messaging and phone calls between Android and Apple phones. Plus it’s ad-free and costs nothing—a perk of the company being a non-profit.
ChatSecure: ChatSecure works by using OTR, or off the record, encryption. It’s the same kind of encryption that desktop chat clients like Adium, Pidgin, and Jitsi use to encrypt your messaging. ChatSecure allows someone to message you from their desktop to your phone, just like the Google Hangouts app does. The difference is that if the person you’re talking to is also using Google or Facebook with an off-the-record messaging app, your conversation will be fully encrypted end-to-end.”
Read the full Wired article here: https://www.wired.com/2016/01/secure-messaging-apps/