The Privatext app was created to ensure that the messages and pictures you send stay private. The app works a lot like Snapchat in that the messages and images you send are deleted after a short amount of time. That being said, the Privatext app is nothing like Snapchat. For starters, the app uses end-to-end encryption to ensure privacy. The system also deletes messages after they've been read or after a pre-set amount of time has passed.
The Privatext app allows you to shield your identity by letting you log-in using a PIN. A password can be set so that only you can access your account and read your messages. The app is currently available for free in both the Apple App Store and the Android Marketplace. A paid version for businesses is also available.