在AdGuard內容阻擋器和AdGuard for Android之間的差異是什麼？
The difference is huge. Content blockers in general are not only limited to specific (and few) browsers, but are much less potent in terms of ad fighting tools they have at their disposal. AdGuard for Android, being a standalone app, can block ads in all browsers and even in other apps, and the filtering quality is so much higher.
為什麼AdGuard for Android不在Google Play商店中？
Google has a very peculiar policy towards ad blockers in Play Store. Basically, it means that any app that can block ads across the device is not allowed there, leaving flimsy content blockers as the only option. AdGuard has been removed
from the Play Store as well.
在AdGuard for Android的免費版和高級版之間的差異是什麼？
Most likely, you need to enable the HTTPS filtering. A lot of ads are loaded via HTTPS, and AdGuard is capable of blocking them, too. Go to Settings --> HTTPS Filtering and turn it on. The other thing to do is to make sure you use the 'High quality' filtering mode (Settings --> Advanced).
Unfortunately, it is impossible to run two VPNs at the same time on Android, but there are some ways to circumvent this limitation. If your device is rooted, or if you only care about blocking ads in WiFi networks, you can switch AdGuard to proxy mode and let any other app to use VPN. Additionally, some VPNs allow the use of upstream proxy (e.g., PIA VPN, Nord VPN) — check if your specific VPN provides this option.