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Hi, one of the developers here. Did not expect this to land on HN.

For iOS, my understanding was that Apple already provides a built-in firewall?

Besides, the APIs to track connections/flows per application aren't necessarily available on iOS [0]?

I used to hack on AOSP for a living, so kind of right at home with Android, right now.

[0} https://developer.apple.com/documentation/networkextension/f...



That API you're linking is only available on macOS (see the column on the right side of the page).


Yeah, that was the point I was trying to make. I am not aware of APIs on iOS that let VPN apps track and block per app connections flows.

Digging a bit deeper in the developer docs, it looks like it may be possible? https://developer.apple.com/documentation/networkextension/a...

Given that the core firewall is implemented in Go, we should be able to port it to iOS without much worry. But first, must arrange funds to purchase a Mac and an iPhone :)


Just a heads-up that at the end of that support doc, it says the API is only available for managed devices on iOS.




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