With this app,
* "Knock unlock " gives you more security than unlock pattern
* Secret SMS will not be stored in your normal inbox
* You can send text messages as an unreadable text with your own pin
* If you want, you can simply change pin for each message or conversation
* you can use this app for normal SMS as well
* with this app you can send messages to friends who has not installed this app
* This feature lets you to use this app for every message you send
* Network provider is also receiving the unreadable version of the text, which means only the pin shared persons can see their messages :-)
How to use :
* First of all you have to choose a tap pattern as the login password
* Now you can send messages as thread conversations
* You have to use 4 digit pin for conversation
* If you want, you can change pin for each message
* To send normal messages (without converting to unreadable) use pin as "0000"
* you can load normal SMS by touching menu sensor and selecting the option "Inbox"
The update with sms backup option, call and sms blacklist with superb design is on the way.
This is just for you and totally Free.