diff --git a/Tailscaled-on-macOS.md b/Tailscaled-on-macOS.md
index 77b91ed..0d73e6e 100644
--- a/Tailscaled-on-macOS.md
+++ b/Tailscaled-on-macOS.md
@@ -56,6 +56,8 @@ Use https://forum.tailscale.com/ for support.
 
 Compared to the GUI version of Tailscale, running `tailscaled` instead has the following differences:
 
+* `tailscaled` on macOS is much newer and less tested, but it seems to all work.
+* the App Store version uses the Apple Network Extension API; `tailscaled` uses the `/dev/utun` TUN interface
 * MagicDNS works, but you need to set 100.100.100.100 as your DNS server yourself. It doesn't yet change your DNS config.
 * `tailscaled` can run at system boot before any user has logged in (e.g. letting you VNC to your computer after a power outage)
 * is fully open source (Tailscale GUI parts aren't open source on non-free operating systems)