WhatsApp is one of the most popular chat clients available. An easy to use interface and low system requirements make this application a perfect alternative to comparatively large Hangouts or Facebook Chat apps. With all the hullabaloo surrounding the NSA, more and more app developers are trying to encrypt the messages sent by their apps to make them almost impossible to retrieve.
XDA Senior Member Zenety let us know about on of the rising stars called Telegram. Just like WhatsApp, Telegram is a fast and simple way to contact your friends and share photos, videos, and other multimedia files up to 200 friends at time. If you care about your privacy, you should consider using Secret Chats mode to enforce end-to-end encryption, which deletes all messages right after reading them and prevents server-side storage. Telegram is available for Android and iOS, so it is a nice alternative to all communicators available in the market. However, please keep in mind that with any device-enforced security measure, it is impossible to be fully secure.
You can find a full description of the application in the original thread. Maybe it’s a good time to protect your data and stop allowing all those big spies to monitor our every move._________