GPS Speedometer: Speed Tracker

What it does

GPS Speedometer: Speed Tracker uses your phone’s GPS to show live travel speed. It is aimed at drivers, cyclists, joggers and rail passengers who want a speed readout without relying only on a vehicle dashboard. The app also records distance and maximum speed, making it useful for checking a journey or comparing repeated trips.

Where it differs

Against a basic speedometer, this app covers more kinds of movement. You can switch between mph, km/h, knots, metres per second and feet per second, and use modes intended for cars, bicycles and trains. That breadth matters if you move between road travel, exercise and rail journeys; if you only need one large number in one unit, a simpler alternative may be easier to live with.

Useful while moving

The main display is built for quick glances, with prominent speed information rather than a dense collection of controls. Speed-limit alerts, GPS accuracy information and maximum-speed tracking add context beyond the current reading. As with any GPS-based tool, results depend on the phone’s location signal, so it is better suited to monitoring than to replacing a vehicle’s calibrated instruments.

Track record

Prometheus Interactive LLC publishes the app in the Tools category. Its 4.58 rating from 43,547 reviews and 10,000,000+ installs suggest that it has found a broad audience among people wanting a flexible speed tracker. Choose it over a narrower alternative if multiple units, activity modes and trip details are useful to you; choose the simpler option if those extras would only get in the way.