And if Google's manifest V3 changes cripple ad blockers in Chrome, that'll affect the effectiveness of the ad blocking browser extensions whereas the standalone AdGuard apps for Windows, Mac and Android aren't affected by Google's manifest V3 changes, for example. Which in layman's terms means the browser extensions are not as 'powerful' as the paid standalone apps (AdGuard for Windows, AdGuard for Mac and AdGuard for Android).

But these are ad blocking browser extensions and they are subject to each browser's extension API and its limitations. There is a free alternative, the AdGuard Adblocker browser extensions for Chrome, Firefox, Edge, Opera, etc. There's yearly licenses (so paid for every year) and there's lifetime licenses (which is a one time fee). That's how a lot of commercial software works these days. In the Android app, you can choose between the default DNS and 10 additional servers by AdGuard, Google, Cloudflare, Cisco, or IBM (Quad9). In fact, you can choose a specific DNS server on the VPN’s Android app and browser extension. Well, the mention of a trial period almost always means it's an app that's paid for (also known as commercial software) in this case it's free to try in a trial basis for 14 days (it says this on the main page too) then after 14 days it requires a paid license. AdGuard is a DNS service which has inherent adblocking capabilities.

Ad guard free