Very Light Weighted, Efficient and Effective Chat Lock for protecting your messages from WhatsApp, KiK, Skype, Snapchat, Facebook Messenger, Twitter, Hike, Line, Wechat, Hangouts under a PIN. Default Password is 1234 and you can change it later. Features: Very Light Weighted just in KBs. Effective and Efficient. Lock Settings to prevent from force stop and uninstall.