Summary

AdGuard, a content blocker for multiple platforms, is an effective solution for blocking ads on iOS such as the iPhone or iPad.

Quick Install:

• Install AdGuard from the App Store.
• Enable blocking: Settings -> Safari -> Content Blockers, enable all filters.

Details

Search for adguard in the App Store and install:

Open the app to validate AdGuard is enabled. The screen may look different, this is the premium version of AdGuard:

Filtering is enabled at this point, there is no need to go any farther. The next steps enable additional filtering options.

Enter Safari settings (Settings -> Safari -> Content Blockers):

Enable filtering in Safari. By default privacy and security are enabled, I recommend enabling all filters: