Current Versions...
GREarth: 3.1.0
GRModel: 3.01

Since GREarth/GRModel are subscription based (no purchase of software but you need a subscription to use), all information can be found at https://www.grearth.co/ -- this includes requesting a trial. Subscriptions handled by AllisonHouse and is separate from any AllisonHouse subscription.

New Installation (these links do not change):
GREarth: https://www.grlevelx.com/downloads/grearth_3_setup.exe
GRModel: https://www.grlevelx.com/downloads/grmodel_3_setup.exe

Updates (these links do not change for updates):
GREarth Update: https://www.grlevelx.com/downloads/grearth_3_update.exe
GRModel Update: https://www.grlevelx.com/downloads/grmodel_3_update.exe