As Android rocks, the requirement for great apps also increases. Whispersystems brings you some great useful apps for Android devices. Some of the great apps from Whispersystems are as follows.

1.       WhisperCore 0.1: Protect your Android OS completely with this app. It has features like full disk encryption and basic platform management tools for Nexus S phones. It has a simple and unobtrusive interface to users, but with powerful security and management APIs for developers.

2.       RedPhone 0.4: Provides end-to-end encryption for your calls which secures conversations, so that nobody can listen in. It has a simple and powerful interface. No additional account required and works with our phone number.

3.       TextSecure 0.5: Encrypt your text messages and protect from any bad guys in hacking it.

You can check it out: Whispersystems Homepage.