I was wondering if the "Safari Filter" is necessary when using the content-blocking iOS app. I think it was checked by default, but after reading the description, I don't understand if it's necessary. Could someone explain it?
Adguard products (Windows/Mac/Android) use an extended ABP syntax for the filters rules: https://adguard.com/en/filterrules.html
Safari on iOS and OS X cannot work with that type of syntax. It provides a special "Content Blocker" rules syntax instead.
Adguard for iOS converts our rules to the "content blocker" type of rules. The problem is that some of our rules cannot be converted (because content blockers have less capabilities, than other Adguard versions). So, we need an additional Safari filter to overcome this and add some safari-specific rules instead.