Starting in version 1.2, FlightBriefing now downloads the map of the whole area of the flight, for a few different zoom levels, the first time the map is displayed. Map data is saved on disk for later retrieval during flight. For the following flights in the same area, FlightBriefing makes use of the already downloaded parts of the map, so only new areas need to be downloaded. An internet connection is still required to visit new zoom levels, but these parts will also be saved on disk for later retrieval online.
FlightBriefing version 1.2 is available on the App Store now.