Operating System Level Blockers

Filtering happens at the operating system level and affects all programs running on that operating system. These solutions replace browser-installable versions, so you don't need to install separate ad blockers for each browser. System-level blockers are usually paid, but most have free trial versions during which you can decide whether the paid version is worth it for you.

List of system-level blockers (non-exhaustive):

• Windows:
• AdGuard for Windows
• AdBlocker Ultimate
• Android:
• AdGuard for Android
• Blokada
• Mac:
• AdGuard for Mac
• iPhone (iOS):
• AdGuard for iOS
• AdBlock for iOS

tip

System-level blockers also offer extra features that can further increase security, such as DNS server replacement, firewall functionality, etc.

note

It's possible that system-level blockers cannot effectively filter certain applications, such as the YouTube app on Android. You can read more about the reason and solution in the Ad-Free YouTube on Android chapter.