Probably not. You have to create a login (which anyone can do) but then you can't see the available settings without connecting via bluetooth to the GCM/ controller. That is going to tell the app what is available to change based on the GCM settings, firmware, etc. I figured out that what OP was trying to do will not work anyways, (at least wouldn't for my case, I assume his as well).
The Silverwolf Controller & GCM that is installed in the cart will just lock it down with a fault if you push parameters to the flash that are out of "range". The GCM is double checking the parameters via CRC check or something via CAN between the GCM and Controller. When you make changes it doesn't go straight to the controller, it pushes it to the Module and the Module pushes it via CAN, if it doesn't like your parameters then it's not going.
TLDR: Even if you got the app to allow you to write parameters that they won't let you write, it would lock it out.
I think I'm almost around it on my cart. I wired into their controller via Serial (TLL RX/ TLL TX) and they left it wide open when they didn't need too. If I make any changes, it locks me out like I said. Now I need to wire directly into the GCM (Golf Cart Module which is essentially a Vehicle Control Module) and try to disable the check.
The Normal Module/ Controller might not have as many checks as mine since mine was specifically sold as a Low Speed Vehicle though so it mine not be as locked down as mine is.
EDIT: The only thing you MIGHT be able to change via the app is your, "User Level". Users, Dealers, and the Manufacturer obviously can change different settings that user's can't. That's going to be based on the Server's response when you log-in to your User Account.