A free app for Android, by pogezone.

Private App Lock – a very secure and easy-to-use application to protect your privacy. It will lock the applications you choose, such as Facebook, WhatsApp, Snapchat, Instagram, WeChat, Skype, Viber, VVKontakte, Kik, Weibo, Line, Telegram, and other social networks.

It can lock the applications you use for chat and for sending and receiving SMS messages. It can also protect your privacy from intruders who may try to use your phone without your permission.

How to Use

To use this application, you need to install it and set it up. When you start the first time, you will be asked to set up the lock. You need to select the applications you want to lock and add the permission to the app. When you start the app, you will be asked to enter the password.