OzRunways EFB vs AirCalc

OzRunways - Australia's #1 Electronic Flight Bag (EFB) is now available internationally. APPROVED BY Australian CASA under CASR 175. (See https://support.ozrunways.com/kb for information). Download now for a 1 month free trial. Download aeronautical publications onto your iPhone & iPad. See your position on every aviation map. Properly licensed documents ensure you will stay up-to-date with the latest amendments of: - Australian MAPS (Every updated VTC, VNC, WAC, ERC High/Low & PCA), ERSA, DAPS and AIP. - New Zealand ERC, VNC, Topographic 250k/50k, Vol 1-4 and LINZ Satellite maps. - Latin America maps and approach charts - South African 500k/1M/250k aero maps, plus entire continent TPC, ONC and OpenStreetMap. - Select European maps and charts - Global custom-made OpenStreetMap with airspace. - Skyvector global ERC and VNC maps Features: - Weather radar with lightning - Live flight tracking over cellular network - Weight & Balance - Flight planner - See your aircraft position on selected approach plates and taxi diagrams - GPS Moving maps with every waypoint/Navaid in the world from official databases. - Online and offline street address search. - Download all maps and charts for offline use. - Print documents to compatible printers using Apple AirPrint. - Full text search of AIP. - Download on demand (then save), or download all documents at home for offline use. - Annual subscription based login, so you aren't paying full price for a publication 1 week before it expires. - Night-time mode on iPad to reduce brightness. Use must be in accordance with applicable aviation regulations. Note: Continued use of GPS running in the background can dramatically decrease battery life. See https://support.ozrunways.com/kb FAQ for details.

Displays relative wind with a moving arrow. Displays components for crosswind and head/tail wind. Pressure altitude, density altitude and true airspeed are calculated from calibrated airspeed, altitude and temperature. Where available, pressure altitude is derived from the internal barometer. Wind speed and direction are computed from true airspeed and heading and from internally derived GPS track and groundspeed. The Options page allows you to select your preferred units.