This is universal installer for both, Windows and OS X versions of SketchUp.
In case you’d like to install older version of Modelur for SketchUp (v2022) that works in SketchUp 2017-2024, you can download the installer here. Note: Modelur 2022 is now retired and will cease to work at the end of 2026.
Modelur for Rhino
The latest version of Modelur
that works with Rhino 7