AdGuard Pro has been discontinued due to Apple Store policy. However, it still works great, and I’ve been using it fine since.Update (22/07/2019): According to the latest release notes, the app is back to being approved by Apple. Updates are served to both old and new users.
Nearly everyone knows about ad-blocking – when browsing on the desktop, its normal to have an ad-blocker extension installed onto your browser. On iOS, you can also block ads in Safari by using third-party apps, and AdGuard is by far the best ad-blocking tool on iOS. With the ability to block any ad, or element you don’t want to see in Safari, and even block ads in apps using the apps custom DNS server, if you want an ad-blocking app for iOS, AdGuard Pro is the best you’ll get.
AdGuard Pro allows you to select different lists of filters, allowing you to completely customise your list of blocked ads. Unlike other apps on the App Store, AdGuard uses public lists that you can refresh to receive the latest versions of the lists so even new ads are blocked. Note however that there is a limitation of 50,000 filters, but this is due to a restriction by Apple, not because of the app.

Luckily, AdGuard Pro has a feature that makes it stand out from the rest. Using the privacy firewall feature that the app has, you can block adverts even in other apps on your phone. For example, if you are playing a free game that has tons of ads, these ads are blocked so you won’t see them anymore. It also protects your privacy by blocking trackers, and hide your actions online. If you are a parent, you can also implement parental controls on the DNS to block malicious and adult sites. This is all done through your device, and not through a remote server, ensuring even more privacy.
To top it all off, you can select the server you want to use – from the basic AdGuard Default server to encrypted servers or even using your own, custom, DNS server.

The firewall feature is by far what makes the app stand out – allowing you to block ads anywhere on your device, and also keep it protected from tracking and malware.
If you are looking for an app to block ads, you won’t go wrong with AdGuard Pro. With advanced features such as custom DNS blocking, AdGuard Pro is the best ad-blocker on the App Store.
AdGuard Pro is £1.99 on the App Store.