GPS-location-app

GPS-location-app records walking, running, cycling and riding workouts with detailed route tracking on iPhone, iPad and Apple Watch.

It keeps recording where satellite positioning does not. In tunnels, underground car parks, streets between tall buildings and other places a GPS fix is lost or turns unreliable, Velocity Mode carries the route forward from the motion sensors — speed from how the vehicle vibrates, direction from the gyroscope and magnetometer — and rejoins real GPS automatically the moment a usable signal returns. It starts from the last speed actually measured, so the track stays joined up rather than restarting from zero.

Velocity Mode is documented rather than asserted. Settings contains the full method, the equations behind it, and the measured error across 23 instrumented journeys — including the cases where it does not work. A complete paper is readable inside the app.

FEATURES

• Live route tracking during workouts, on iPhone, iPad and Apple Watch
• Velocity Mode: keeps recording through tunnels, car parks and weak signal
• Automatic handover — no need to switch anything on mid-workout
• Workout map with historical route browsing and road alignment
• Distance analysis by week, month, year and all time
• Daily and cumulative charts for long-term progress
• Heart rate, calories, pace, elevation and split tracking
• Apple Health integration for workouts and distance
• Optional diagnostics logs — the raw sensor data behind every accuracy figure

HONEST ABOUT ITS LIMITS

Velocity Mode is an estimate, not a substitute for GPS. It is accurate to within a few per cent on open roads and much less so at walking pace, in a hand, or on a motorcycle with the phone in a pocket — a case where it does not work at all. Aircraft speed cannot be recovered without GPS. All of this is measured, written down, and shown in the app rather than hidden.

Built for people who want more detail than a basic workout tracker, while keeping recording simple and fast.