I sent mine in a couple years back due to all the falsing from collision sensors on current vehicles. It quieted it down significantly.
Apparently with JVB1(android), you can get control over everything and it can overlay right onto waze. That's frickin awesome!
It will even turn on/off bands based on the state you're in.
Like you, I see no cop running anything but constant on KA in NJ except once I got a laser alert on the turnpike and it was real as I could see the guy with the gun.
It arrives Monday, so I'll get back to this thread once I have some more information.
I never tried the apps but I also have a gen 1 and honestly, I find almost all cops in NJ leave the radar on all the time and still use the KA band. The unit works amazingly well and I have never sent it in for firmware updates. For PA only state cops and county sherries are allowed by law to use radar so I don’t have to worry about speed traps at the local level
I’d like to check out a Gen 2 to see what it offers.