How and what does app lock work ? Thanks in advance

Hello Brad.
Please click on the following link http://bit.ly/1EC8H4H and fill out your details, select as android then the name of AVG Program that you installed in your mobile and in description explain about your issue completely and finally click on Email option. Our AVG mobile team will reply back to you via email with a resolution.
Thank you.

I am using AVG ANTIVIRUS FREE.
I have a new LG G4 mobile phone.
It is asking me for app lock as i am still getting the pro features.
I will continue with pro as i love AVG ANTIVIRUS SOFTWARE.I just want to know how app lock works.
Thanking all replies in advance with gratitude.

Hello Brad.
Please click on the following link http://bit.ly/1EC8H4H and fill out your details, select as android then the name of AVG Program that you installed in your mobile and in description explain about your issue completely and finally click on Email option. Our AVG mobile team will reply back to you via email with a resolution.
Thank you.