What is it?

An easy-to-use interface to allow iPhone®, iPad®, and iPod touch® users to link with the popular JMRI software.

What is it for?

To control a model train using a wireless connection to a digital command control system.

Can I use it?

If you have the necessary equipment, or operate at a location which does, Yes!  See our Checklist.  Please verify before downloading the App.

Can I try it first?

A free version, WiThrottle Lite, is also available.


JMRI test version 2.9.4 does not work properly with WiThrottle.

Version 2.9.5 or Version 2.8 + plug-in are recommended.