X11.app

a version of the X.Org X Window System that runs on macOS

X server · by Apple Inc. · xquartz.org

Open X11.app in AirStack

What X11.app’s own pages say

What it says it doesa version of the X.Org X Window System that runs on macOS xquartz.org
PlatformsmacOS, OS X versions 10.5 through 10.7 xquartz.org

Each value is a quote AirStack found on the product’s own pages, read 2026-11-04. A missing field means AirStack has not found it on its pages.