Comparison

Simple GPS Speedometer vs Overtrain

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Simple GPS Speedometer

This app transforms your iPhone into a real-time GPS speedometer, ideal for tracking speeds during various modes of transport. It offers multiple measurement modes, display options, and detailed tracking of speed, distance, and time.

Highlights
  • Real-time speed display (km/h or mph)
  • Automatic unit detection
  • Four measurement modes (Walking, Car/Train, Bullet Train, Airplane)
  • Analog and digital display options
  • Max speed, distance, and time tracking
  • Live speed graph
  • Dark and light themes
Features
Read full description

Simple Speedometer turns your iPhone into a real-time GPS speedometer — perfect for cars, trains, bullet trains, and airplanes. KEY FEATURES - Real-time speed display in km/h or mph - Automatic unit detection based on your region (mph for US, UK, etc.) - Manual unit switching in settings (Automatic / km/h / mph) - Four measurement modes: Walking, Car / Train, Bullet Train, Airplane - Analog and digital display options - Speed meter with round-number scales for each mode and unit - Maximum speed, distance, and elapsed time tracking - Live speed graph over time (up to 10 minutes) - Dark and light themes - Portrait orientation with keep-awake display BEST USE CASES - Track your speed on road trips or commutes - See how fast your bullet train is moving - Measure walking or running pace - Check your airplane's cruising speed PRIVACY FIRST GPS data is used only for on-device speed calculation. Nothing is transmitted or stored externally. No account required, no ads. NOTES Speed accuracy depends on your device's GPS signal quality. Works best outdoors or near windows. Distance is measured in km (metric) or mi (imperial) based on your selected unit.

About

Overtrain

This app simulates an in-train LCD display to show your current location, next station, and upcoming stops. It allows for journey planning, offers various display styles, and provides Live Activities for lock screen updates.

Highlights
  • Simulated LCD panel display
  • Live Activities for Lock Screen
  • Journey planning and route saving
  • Customizable LCD panel styles
  • Picture-in-Picture mode
  • Customizable and importable train lines
Features
Read full description

Overtrain turns your trip across rail networks into a more immersive experience. Pick where you're going, start your journey, and Overtrain shows you the next station, arrivals, and transfers on a simulated LCD panel - the same one you see above the doors in a train. The simulated LCD panel floats above your apps, and there is also a Live Activity that lets you glance at where you are at on your journey. Plan a journey in seconds - Search any station and set your route from, to, and via - Choose the train or route that fits, with real departure times - Avoid specific lines, and tune walking speed - Save your regular trips to start again in one tap Stay updated during your ride - A train-inspired simulated LCD panel shows your position, the next stop, and the stops ahead - Choose from various LCD panel styles, inspired from styles from Japan, London trains, and from fiction - Picture-in-Picture keeps the display floating while you use other apps - Live Activities put your next station and delay on the Lock Screen and Dynamic Island Built-in and customized train lines - Choose from built-in railways operating in Tokyo, Saitama, Yokohama, and more - Direct "through" services and skip-stop express trains are supported - Build your own custom lines, and also additionally share or and import custom lines - Fully bilingual in Japanese and English, with faithful station-name typography Note: Overtrain uses public railway timetable data, and is built and maintained by a single developer. Railway timetable may become inaccurate with time, and providing feedback is possible from within the app.

Screenshots

Simple GPS Speedometer3 screens
Overtrain4 screens

Verdict

The call

The clearest difference is review sentiment: Overtrain at 50% against Simple GPS Speedometer's 0%. Overtrain also leads on update cadence (weekly vs every 3 weeks). Simple GPS Speedometer's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 26.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Simple GPS Speedometer ships an update every 3 weeks, Overtrain weekly. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.

Scorecard4 real differences · 4 level
Simple GPS Speedometer versus Overtrain: the parameters behind the verdict, then further details
ParameterSimple GPS SpeedometerOvertrain
PriceFreeFree
Positive reviews0.0% of reviews50.0% of reviews — better
Update frequencyEvery 3 weeksWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better26.0
Further details — not scored
Size28 MB48 MB
Age rating4+4+
DeveloperYUJI KANEKOJustin Xin

Customer experience

Simple GPS Speedometer

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Overtrain

Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Simple GPS Speedometer

No in-app purchases

None

Overtrain

No in-app purchases

Questions

Is Simple GPS Speedometer free?
Simple GPS Speedometer is free to download, with no in-app purchases.
Is Overtrain free?
Overtrain is free to download, with no in-app purchases.
Do Simple GPS Speedometer or Overtrain have ads?
Neither Simple GPS Speedometer nor Overtrain shows ads.
Which is updated more often, Simple GPS Speedometer or Overtrain?
Simple GPS Speedometer ships an update every 3 weeks, and Overtrain weekly. Most recently, Simple GPS Speedometer was updated on October 14, 2026 and Overtrain on October 13, 2026.

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