SpeedClock - Video Radar 4+

Sten Kaiser

    • £2.99


The iPhone speed radar - easy-to-use speed measurement in your pocket, anytime, anywhere!

A unique, advanced app designed to easily measure the speed of cars, boats, skaters, skiers, cyclists, animals, models, footballs, tennis serves, etc. The system is based on motion detection, enabling you to track a moving object using a hand-held device alone. SpeedClock includes three separate speed measurement tools and two distance estimation tools. 

Speed Radar 

SpeedClock uses the camera to detect and analyze motion, and a reference distance to calculate the speed of an object. Define the distance to the object of interest, hold the iPhone still and let the object pass across the the screen. The speed is displayed automatically. SpeedClock is also able to automatically measure the speed and save an image of passing objects. The measurement can be initiated from an Apple Watch and the speed displayed on the watch face.

High Speed Video Recording

An additional speed tool records and processes a video, which enables SpeedClock to track small, fast object, such as flying balls, that can be difficult to catch with regular motion detection. 

It also calculates additional parameters like acceleration.

Synchronized Timing Gates

A third speed instrument uses two iPhone/iPads equipped with motion detection to start and stop the timer and measure the speed. The distance between the devices is used as reference, and the speed is calculated based on the time taken by the object to travel between the 'Start' and 'Stop' devices. The time is transmitted wirelessly over WiFi or Bluetooth.

Distance Measurement

The stadimeter uses the size of a known object, e.g. a car, to calculate the distance. 
The clinometer uses your own height as reference, along with the angle of the iPhone, to estimate the distance to a point on the ground. 
The distances obtained from either tool can then be used to calculate the speed. 

See a demo video at the application website (www.appmaker.se/speedClock)

“All I can say is, Fantastic”

"Wow, how cool is that!"

"You really going to like this app"
dailyappshow.com/speedclock (video)

"A useful utility for anyone needing to measure speed"

"Useful, easy to use and quite a bit of fun (4 of 5)"

"speedClock is a useful app when you need to check the speed of yourself, or an object for exercise, racing or simple curiosity (4.5 of 5)"


"It is a pleasure to use and operate. A nice app for those looking for a open-ended radar gun app."

What’s New

Version 12.2

Improved human and car tracking in Live Speed, especially on older devices.

Ratings and Reviews

2.8 out of 5
9 Ratings

9 Ratings

ejcoleman ,

Okay, but not complete

I’ve been using the app to measure speeds down out road. It often misses cars but those it does capture it seems fairly accurate. You can’t do anything with the data afterwards however. Sharing and emailing data sends a blank email, save to file opens a blank screen that locks up the app, copy the data copies nothing as nothing pastes. Impossible to get the data into a spreadsheet without retiring hundreds of entries.

It’s okay, but needs work

NetvUK ,

On the surface - good

On the surface this app seems good. Speed M takes a bit of setting up and your view needs to be perfect. I can’t get the data to export from Speed M. It may be that the app is behind iOS versions and does not comply with the latest security built into iOS? When saving images the camera freezes after the first image is taken. I think this should be a free app at this stage until the developer fixes the problems.

Olliejanman ,

Good but not very practical

Unfortunately you have to measure how far away from an object you are which means if you are skiing or something it's pretty impractical. It does cone with 2 distance measures but unless they are perfectly aligned and the iPhone not shaking the reading is often off. This means the speed readings will often be slightly off unless you have the time, patience and resources to measure it accurately.

App Privacy

The developer, Sten Kaiser, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Diagnostics

Privacy practices may vary based on, for example, the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

More By This Developer

SprintTimer - Photo Finish
SprintStart - Reaction Time
RacquetTune - String Tension
SeeLevel - visual clinometer
FitnessMeter - Test & Measure
LapTracker - Auto Timer

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