Adguard: free key
Recommend the program to four friends and get an Adguard key absolutely for free! To get a free key, do the following:
The expiry period of licenses obtained through this promotion is one year.
License type is Standard. Only one license key is sent to each email address.
A key is provided only if the program is installed and launched as the result of your recommendation to four other users.
Links to the program can be published in blogs and social networks, distributed via instant messengers or other legal channels.