Does the iOS app do more than change wi-fi DNS settings?

If I go into iOS Settings → Wi-Fi → DNS and set it to manually use and, is that doing the same thing as the iOS app?

I assume the app is doing more, but I can’t find that documented anywhere.


It’s using DoH or DoT, so it’s encrypting the DNS connection. If you go to, you’ll see what it’s doing.

Very helpful. Thanks @sdayman!

No. Beyond encryption, that setting changes your DNS on the exact wifi (SSID) you are configuring at that moment, it does not change other wifi connections, nor cellular.

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That’s the info I was looking for. Thanks @thedaveCA!