Application KGB. Your secrets cost more than 1 dollar!
• Keep a private contact list
• Hide messages
• Hide outgoing and incoming calls

WhenWho gives you a clear insight of your upcoming call activity. WhenWho helps you discovering the hidden patterns behind your incoming and outgoing calls. WhenWho helps you responding to the following questions (and even more):
Who is gonna call you in the upcoming period
What are the odds that a given contact calls you now
When will be the next call of a given contact
How often a contact calls you

Yeah that's true! As the name says, you can now hide your SMS / text messages safely! No one will ever find it out.
You can also create hidden contacts.
Just select the contacts in 'settings' tab and all the incoming & outgoing messages to those contacts will be hidden & stored in password protected vault. Now you can even undo your messages. (just in case)

MyHiddenPhone is a solution to manage and protect your data.