Turn your Android into a professional GPS speedometer, mileage tracker, and heads-up display (HUD). Speedometer One shows real-time speed in MPH or KM/H, runs an odometer, tracks elevation, and logs every trip — all in the background.

🚗 GPS Speedometer — MPH, KM/H & Knots
The large tachometer-style display shows current speed, average speed, and top speed with GPS precision. Readable at a glance, day or night. Choose MPH for UK roads, KM/H for European routes, or Knots on the water.

🪟 Heads-Up Display (HUD) Mode
Project your speed onto your windshield. The HUD mirrors your readout in reverse so it reflects perfectly off the glass — safe, eyes-on-the-road driving with no extra hardware required. Activate a speed limit and the HUD alerts you visually the moment you exceed it.

📍 Mileage & Driving Tracker
Every trip is automatically recorded — distance, duration, average speed, top speed, and elevation gain. Pause and resume a trip mid-journey. Review your full driving history in a calendar view. The perfect mileage log for HMRC mileage claims, business miles, expenses, or personal tracking.

📏 Digital Odometer & Distance Log
Speedometer One tracks cumulative trip distance like a digital odometer. Ideal for logging delivery miles, business mileage, or keeping a personal driving log. Works for cars, motorcycles, e-bikes, boats, and any other vehicle.

🏔️ Altitude & Elevation (MSL)
Most apps show raw GPS altitude — which can be off by 50+ metres. Our advanced Geoid Correction system calculates your true Mean Sea Level (MSL) elevation. Accurate altitude for mountain roads, hiking, and trail running.

⚠️ Speed Limit Alerts
Set any custom speed limit and receive instant visual and audio warnings when you exceed it. Essential for 20mph zones, village roads, motorway driving, and school zones.

📱 Picture-in-Picture (PiP)
Keep your speed visible while using Google Maps, Waze, or any other navigation app. Speedometer One floats as a small overlay so you can multitask without losing sight of your real-time speed and altitude.

📊 Speed & Elevation Charts (PRO)
PRO users unlock detailed speed and altitude graphs for every trip. See where you hit your top speed, how your elevation changed, and analyse your driving patterns. Full analytics dashboard included.

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WHO IS THIS FOR?

🚘 Delivery & Rideshare Drivers
Uber, Bolt, Deliveroo, Just Eat, and Amazon Flex drivers. Track every mile automatically for HMRC mileage allowance (45p/mile). Speedometer One records in the background even when the screen is off — zero effort mile logging.

🛣️ Motorway & Road Trip Drivers
Full-screen GPS speedometer with speed limit alerts, real-time altitude, and a complete route history. Every stat from every drive, saved automatically.

🏍️ Motorcycle & Campervan Drivers
HUD mode is readable in direct sunlight. No OBD adapter or hardware needed — GPS-based, works with any vehicle out of the box.

🚴 Cyclists & E-Bike Riders
GPS speed tracker and digital odometer without a dedicated bike computer. Track top speed, average pace, and elevation gain on every ride.

🚢 Boating & Water Sports
Switch to Knots and track your boat speed on open water. Works anywhere there is a signal.

🏔️ Hikers & Mountain Drivers
Real MSL altitude with geoid correction — not the inaccurate raw GPS value. Precise elevation for Snowdonia, the Scottish Highlands, Peak District, and mountain roads.

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🔋 Battery-Efficient Background Tracking
Our GPS engine is optimised for minimal battery drain. Speedometer One continues tracking your mileage, speed, and route even when the screen is off or when you switch to other apps.

🔒 Privacy First
Your location data stays on your device. We never sell or share your data.

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Download Speedometer One today — GPS speedometer, mileage tracker, heads-up display, odometer, and altitude all in one app. The most accurate speed tracker on Google Play.