AdGuard is a system-wide ad and tracker blocker app for Windows, macOS, Android, and iOS that filters content across apps and browsers, not just a single browser. It uses a local filtering engine and can also handle DNS filtering and HTTPS traffic inspection. Unlike AdGuard's open-source Home server and browser extensions, the desktop and Android apps and their CoreLibs engine are proprietary, though the iOS app is open source. It is freemium: a paid license unlocks the full app, with a free tier or trial depending on the platform. The developer is AdGuard Software Ltd, based in Cyprus.

AdGuard
System-wide ad and tracker blocker app
adguard.comFreemiumWindowsmacOSAndroidiOSCyprus
PricingPaid license for the full app (one-time or subscription depending on platform), with a free trial or limited free tier on some platforms.
Strengths
- System-wide blocking across apps and browsers
- Available on Windows, macOS, Android, and iOS
- Includes DNS filtering and tracker protection
- Actively developed with frequent updates
Considerations
- Desktop and Android apps and CoreLibs are proprietary; the iOS app is open source
- Full features require a paid license
- HTTPS filtering installs a local root certificate
- The iOS version is more limited by platform rules
Listed inAd Blockers
AdGuard alternatives

uBlock OriginThe gold-standard browser extension for blocking ads and trackers.

NextDNSConfigurable DNS-level blocking for every device on your network.

uBlock Origin LiteThe Manifest V3 blocker for Chromium browsers, from uBO's own developer.

AdGuard DNSSet-in-minutes public DNS resolver that blocks ads and trackers.
