I just downloaded the B4ufly app and there is something interesting that caught my eye. when I checked the area that I live it shows that I'm in a no fly zone. Turns out the hospital that is less than 1.1 miles away has a heliport and according to the app I am supposed to contact them when and if I fly. I must explain that this doesn't ground me, when I fly close to home it's just to practice and don't fly over 200 ft. if that and it's in an open field. But it was interesting to see that airports aren't the only "no fly zones" I am also aware of the other no fly zones that are not marked on the app.