Download

Peering for Mac, and Peering for iPhone.

Peering for Mac

Install this half first. It is the one that shares the screen, and the one your iPhone connects to.

macOS 15 (Sequoia) or later, on Apple silicon or Intel.
Under 20 MB. Signed and notarised, so it opens without a warning.
It updates itself: once a day, and whenever you ask from Peering → Check for Updates.

Peering for iPhone

Requires iOS 18 or later. Works on any iPhone (or iPad) that runs iOS 18, including older devices that cannot upgrade to iOS 26.

Download on the App Store

Which Macs it runs on

Any Mac running macOS 15 (Sequoia) or later, Apple silicon or Intel. Sharing a screen needs Screen Recording permission, which macOS asks for the first time you choose a display; the app explains what it needs and why at that moment rather than at launch.

Before you install

Peering reaches your Mac from another network, straight between the two devices when their networks allow it and through a relay when they do not, and the free plan includes 30 minutes of relay time every day. Every paid plan removes that limit. Connecting over your own network is free and unlimited. The Privacy Policy says exactly what the relay handles and what it cannot read; the Terms of Use are short.