CalTopo vs APRSSwift

New on CalTopo: the CalTopo app is now satellite ready, allowing you to use many features of the app offline with satellite data! Take the best mapping app with you wherever you go with the CalTopo app for iOS. Trusted by professional mountain guides, avalanche educators, and search and rescue teams, CalTopo has all the features you need to plan your next off-grid pursuit. Seamless integration between CalTopo online and your mobile device allows you to access and update your maps no matter where you are. Any changes you make will automatically sync across all devices, making exporting and importing your latest map a thing of the past. The CalTopo app allows you to easily take your planning and navigation to the next level. Real time decision making in backcountry terrain is made easy with the ability to download maps and layers like slope angle shading to your device for offline use. Plan for conditions on your route with sun exposure, wind, precipitation and avalanche forecasts. View and track your location on the map using GPS, even if you are offline. Share maps with your teams or travel partners to plan collaboratively, and to ensure everyone has the necessary data. Monitor real time updates from the field, like your friends progress on a long outing with live tracking on shared maps. Plan and navigate your next adventure with the CalTopo App today! Map layers include: • MapBuilder Topo, Hybrid and Overlay • Forest Service Maps • Scanned Topos • Global Imagery • Shaded Relief • Slope Angle Shading (including high resolution elevation data where available) • Parcel data • Public Lands • Weekly Satellite Imagery • NAIP Satellite Imagery • Sun Exposure • Marine Charts • Weather Forecasting (including wind, precipitation, and temperatures) • Snow and Water Gauge Data • Fire History/Activity • And many more Support and Feature Requests: Email us at help@caltopo.com.

APRSSwift brings the Automatic Packet Reporting System (APRS) to your Apple devices — a native, universal amateur-radio app for iPhone, iPad, Mac, and Apple Watch. Report your position to the APRS network, watch nearby stations move on a live map, read a real-time packet log, and exchange APRS text messages — all with your own callsign. FEATURES • Live map with APRS symbols, station tracks, and your own location • Connect via APRS-IS (Internet), a TCP KISS TNC, a Bluetooth TNC (Mobilinkd), or the built-in AFSK sound modem (1200 baud — no extra hardware) • Full packet decoding: position, Mic-E, compressed, objects, items, status, weather, messages, and telemetry • SmartBeaconing — adaptive beacon rate based on speed and turns • Two-way APRS messaging with acknowledgements • Station list with distance, favorites, and proximity alerts • Maidenhead grid locator, metric or imperial units, and dead reckoning • Post APRS objects, send status reports, and view weather & telemetry charts • Apple Watch app: beacon, grid, and nearby stations on your wrist APRSSwift is designed for licensed amateur radio operators. A valid callsign is required; your APRS-IS passcode is generated automatically from it. 73!