There are no working, permanent, "free" AdGuard premium keys available through illicit channels. Anyone promising otherwise is lying to you.
That is it. Your entire home network, including game consoles, IoT devices, and smart fridges, will now have ad-blocking. It is not as granular as the premium app (you cannot whitelist specific YouTube channels), but it is adguard licence key free
Using an AdGuard license key offers several benefits, including: There are no working, permanent, "free" AdGuard premium