Are you worried about private messages? How about to lock down your private to get peace of mind?
If your friends borrow your mobile phone for playing games, they will not be able to see your private conversation. Want to protect your messages from others then SMS Locker is best available solution to protect your conservation privacy.
Features

• SMS locker is password protected
• Reset password through email using the Forget Password option
• It is easy to learn and use
• Import contacts from your contact lists to private contact list
• Send private message from the app to anyone
• It has an interactive interface
• Private message notification on reception of message from the private contact

Google Play:
https://play.google.com/store/apps/details?id=com.aroustechnology.smslocker

iTunes Store:
https://itunes.apple.com/lk/developer/tehsin-khan/id816184637

Facebook :
https://www.facebook.com/ArousTechnology/