Lock For Viber can protect your Viber app security. It can prevent others peeping privacy of your app information.
When you enable the protection, someone tries to enter the app, they must need to enter your password.
With this app, you don't have to worry about your viber private information on the mobile phone to be seen.
Lock For Viber is easy to use, safe and reliable.
It is free for all users, it supports Simplified Chinese, Traditional Chinese, English, Korean and other languages.