Avare (pronounced "Av Air") is a free moving-map aviation GPS app. Note: Internet access is required only for installing the app, an aviation database, and at least 1 chart; Then to update METAR/TAF, & TFR graphics & Text. Avare provides offline moving map on all FAA charts (VFR Sectional, IFR lo/hi enroute, Approach Plate, WAC & TAC);