If you set up your account with DJI and are logged in - it will also tell you Restricted Zones when trying to take off and such. You're not registering with FAA, like we do on bigger drones - yet the FlyApp does have some capabilities on Restricted / NO FLY Zones as well. Best to use another app to see where you want to fly and get permission if required before going there and the software won't let the drone take off.
I have also unlocked from the field if I was using my cell phone and had service connection when it asked. Does not happen everywhere, esp if you are really close to a military base and flight zone.