Shopping the App Store for an iOS ad blocker brings up two near-identical listings: AdGuard and AdGuard Pro. Both promise system-wide DNS filtering, Safari content blocking, and tracker protection on iPhone and iPad. Most buyers assume Pro means stronger protection. In practice, the two apps run the same ad-blocking engine after Apple forced feature parity through App Store review. The real differences sit in a few toggles and menus, not in blocking capability.
What is the actual difference between AdGuard Free and AdGuard Pro?
AdGuard and AdGuard Pro for iOS are functionally identical for ad blocking, tracker blocking, and DNS protection. The only meaningful differences are three UI categories: the settings menu, Safari content-blocker configuration, and DNS toggles.
The free AdGuard app added Advanced Mode under “Other Settings,” which unlocks DNS filtering including the Simplified Domain Name Filter (an English filter, social network filter, spyware filter, mobile ad filter, EasyList, and EasyPrivacy). It also introduced an Activity Feed that logs DNS request origins so you can spot suspicious domains. AdGuard Pro historically carried broader system-level filtering via a local VPN profile, but the free app’s own DNS protection module is now functionally equivalent for most users.
Each version ships the same DNS server options: regular, DNSCrypt, DNS-over-HTTPS, DNS-over-TLS, and DNS-over-QUIC. Both let you route DNS through a local VPN profile to cover apps and browsers outside Safari. The statistics module — total requests, blocked requests, data saved — appears in both.
How does AdGuard Safari content blocking work?
AdGuard installs up to six content blockers in Safari that act as containers for filtering rules. These blockers operate inside Safari before a page fully renders, stopping ad and tracker requests at the network layer. The six containers are General, Privacy, Social, Security, Custom, and Other.
Filter lists loaded into those containers include the same base, tracking protection, URL tracking, social media, and annoyances lists found in the desktop app, plus language-specific filters for Russian, German, French, Japanese, Dutch, Spanish, Portuguese, Turkish, Chinese, and Ukrainian. A DNS filter condenses several lists for DNS-level blocking. You can also write User Rules for custom allowlisting or use the AdGuard Assistant from within Safari to tweak rules without opening the app.
Enabling them takes a few steps: install the app, go to Settings > Safari > Extensions, and toggle each AdGuard extension on. Then open Content Blockers and enable them for all websites or a personal allowlist. On macOS, enable “Content Blockers” under Safari > Websites and set “When visiting other websites” to on. Without this enable step, content blocking stays inactive even though the app is installed.
Why this matters for browsing privacy on iOS
iOS restricts what third-party extensions can touch, so Safari content blocking is the only practical way to strip ads inside the browser. A DNS-only approach clears app-level trackers but leaves webpage popups and video pre-rolls untouched. AdGuard’s two-layer design — Safari blockers plus a local-VPN DNS filter — is a main reason iOS users lean toward it over simpler DNS-only options. The catch: both layers depend on updated filter lists, and an idle list lets new ad formats through.
Account-based services add another decision point. Signing in syncs preferences across devices, but it also means trusting the vendor’s privacy claims and routing DNS queries through their servers.
How ProBlocker addresses ad blocking without account sync
ProBlocker takes a different approach: no account, no paid tier, open source (github.com/theproblocker/adblocker), and zero data collection. It filters locally, blocks YouTube pre-roll, mid-roll, and overlay ads plus trackers and malware domains, updates filter lists — EasyList, EasyPrivacy, uBlock Origin filters, custom YouTube rules — daily, and runs natively on Manifest V3. Unlike AdGuard, it has no Acceptable Ads program and no paid whitelisting. For a deeper look at the two approaches, visit our ProBlocker vs AdGuard comparison page.
Practical takeaways for choosing between AdGuard and AdGuard Pro
- Install only one of the two apps; duplicate installations waste storage and confuse settings.
- Enable Advanced Mode to unlock DNS-level filtering if you want system-wide coverage beyond Safari.
- Turn on all six Safari content blockers inside Settings > Safari > Extensions for full browser protection.
- If you want to protect other apps and networks, activate the DNS protection module and pick an encrypted server.
- For an extension that filters locally with no account and no paid tier, see our /compare/best-ad-blocker/ and /tracker-blocker/ pages.