A free trial version is available to test the functionalities of this software with your data and your hardware.

This release contains some features that are not active such as saving files, printing reports
and the selection of some number of teeth. All the rest of the software is fully operational.

This software works with MS Windows (XP, 7, 8, 10, 11) and 32 or 64 bits.
The downloaded file is compressed. Its size is about 22MB.

Download GearExpert

Download the GearExpert_V6-4_Setup.exe file and install the software.
Follow the instructions provided for a correct installation.
In case of problems during installing or using, you can contact us at:
gearexpert@free.fr

If you are interested to buy this software, see information here
How buy it

A very simplified version exists for use on Android smartphones.
(Calculation of external trains only)
Please note, this application is not compatible with GearExpert software files.
Free application is provided as is, there is no maintenance or updating.

Simplified version for Android, download here