RV vs TrailShed

RV‑Pilot turns your iPhone and CarPlay into a professional‑grade aviation‑style instrument panel. Get precise altitude, atmospheric pressure, climb rate, ground speed, magnetic heading, pitch, and roll — all with full voice alerts that speak directly through your car speakers. Perfect for • Pilots and aviation enthusiasts (VFR support) • Hikers, mountain bikers, and off‑road drivers • Anyone who needs reliable real‑time elevation and attitude data - GPS Altitude Absolute altitude above sea level using CoreLocation (WGS84 ellipsoid, accurate where GPS signal is available). - Barometric Altitude Estimated altitude from the built‑in barometer using the ISA formula (1013.25 hPa reference). Also shows raw station pressure in hPa or inHg. - Vertical & Ground Speed Vertical speed derived from GPS altitude with smoothing. Ground speed in km/h, mph, or knots. - Magnetic Heading Accurate heading 0–360° using the same Apple Compass engine — independent of device orientation. - Pitch & Roll Device attitude in degrees, displayed both numerically and with a bubble level. Updates at 15 Hz. - Voice Alerts Customizable spoken warnings when altitude or speed exceed your thresholds. Use {value} placeholder to hear the actual measurement. Choose any system voice (neural voices supported). Alerts play over car speakers via CarPlay. - Apple CarPlay Integration • 3‑tab interface – Navigation, Altitude, Level • Dashboard widgets (where supported) – colour‑coded live values • Fully independent UI optimised for car displays - Units Switch between Metric (m, km/h, hPa), Imperial (ft, mph, inHg), and Nautical (ft, kn, hPa). - Privacy‑First All sensor data stays on your device. No analytics, no tracking, no internet connection required. Location is used only for GPS altitude, speed, and heading. Reset Δ Altitude Zero the relative barometric altitude counter with one tap — ideal for tracking height gain from a reference point. RV‑Pilot is the simple, reliable, and privacy‑respecting instrument panel you can trust on the road, on the trail, or in the air.

Trailshed allows you to quickly and easily highlight the buildings and terrain that are visible from any location. For city viewing, drag your marker anywhere in the city to see what buildings obstruct your view, or if your new place will have sweet skyline views. You can also add custom buildings to see if new developments will cause significant changes in your view. For terrain and hiking, search a specific location to see the view from there. Explore trails by uploading a GPX file and seeing where the best views are, or use one of our example trails! Elevate your view, with Trailshed.