AutoHeight 1.5 m
Looking

Illustration of Clocked at work: a dog runs along the footpath at night, a box locks on to it and the speed reads 31 km/h, plus or minus 2. A runner, a cyclist and a car pass too, and you can switch the lock between them.

Speed, estimated live through your camera

Point. Lock on. Clocked.

Aim your phone at a passing car, bike, runner or dog. Clocked boxes it, locks on and shows how fast it’s going, live, right on the camera.

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  • No subscriptions
Get it on Google PlayTry Clocked on iPhone with TestFlight

In Early Access on Google Play, and on iPhone through TestFlight. Free to download and use. Pro is an optional one-time upgrade.

Thirty seconds

Whose dog is faster?

Half a minute of Clocked settling it: a dog, a runner, a bike and a car, boxed, locked on and clocked live, then a look at Pro.

The presenter and his voice are AI-generated. The phone footage is Clocked’s own screen, on its demo street. Watch on YouTube

How it works

Point it. It does the rest.

Three steps, and the middle one does itself. No buttons to hunt for mid-pass.

  1. Point

    Hold your phone side-on to the road, the path or the park. Clocked fills the screen with the camera.

  2. Lock

    It boxes everything that’s moving and locks on to the one nearest the middle. Tap another box to switch.

  3. Read

    The speed shows live on the box and firms up as Clocked watches: 52 km/h ±3.

Modes

Three ways to clock it.

Start in Auto. Switch when the job calls for it.

Auto

Free

Ground-plane, from your phone’s height

Set how high you hold the phone and Clocked works out the distance itself, from where things meet the ground. Point and go.

Known distance

Free

More accurate at range

Tell Clocked how far away the path is and the ± tightens, especially further out.

Stopwatch

Free

Time it between two marks

Know the gap between two marks? Tap as it passes each one. 25 m in 3.1 s is 29 km/h.

Clocked Pro

For when you want to keep score.

The free app does the whole trick. Pro is one optional upgrade for people who want the numbers, the alerts and the bragging rights.

Pro box colours against a 50 km/h limit: the locked car reads 61, over the limit, so its box is red. The other cars get faint boxes; tap one to switch to it. 61 LIMIT 50
UnderCloseOver the limit you set

Pass log Example session

Passes
214
Average
41km/h
85th percentile
48km/h
Over 50
10%
Passes per hour, 7 am to 7 pm, peaking at 8 am and 5 pm.

85th percentile: the speed 85 in 100 passes stay at or under. Illustrative numbers.

  • Box colours and styles

    Set a limit and the locked box turns green, amber or red against it. Draw it as corners, a box or a dot.

  • Speed alert

    A tone and a red badge when a pass goes over your limit.

  • Pass log + survey

    Every pass logged. Count, average, 85th percentile, % over the limit and an hourly chart.

  • CSV export

    Send the log to a spreadsheet and slice it your way.

  • Speed-stamped snapshot

    A photo with the speed stamped right on it. Made for the group chat.

  • Two-mark calibration

    Two marks on the road measure your lens height and the phone’s tilt, and the ± tightens.

  • Zoom lock-on

    Pinch, or tap 2x or 3x, to fill the picture with a pass further down the road. The maths follows the zoom.

  • Pay once, own it forever.

    Pro is a one-time upgrade inside the app.

Honest numbers

It’s an estimate. Here’s how to get the best reading.

A phone camera can judge speed surprisingly well, if you give it a fair look.

  • Brace the phone

    Lean on a post, a wall or a fence. Steady phone, steady number.

  • Side-on

    Stand so it crosses the frame, not heads straight for you.

  • 10 to 30 m away

    Close enough to see it clearly, far enough to watch it move.

  • Set your phone height

    Auto mode needs it. Set it once and hold the phone about there.

Top-down view. The phone stands back from the road, 10 to 30 metres away, with traffic crossing its view side-on. Traffic heading straight at the phone is harder to read. 10 m 30 m SIDE-ON: BEST YOU HEAD-ON:HARDER

Every reading is an estimate, with a ± that shows how sure Clocked is. Set up like that, with the lens height or the distance set, the ± tightens. In Auto, two-mark calibration (Pro) tightens it further.

If the phone wobbles or tilts, or the target heads straight at you, Clocked tells you, and the ± grows. It’s for fun and curiosity, not for anything official.

FAQ

Fair questions.

How accurate is it?

It’s an estimate, and the ± next to the number shows how sure Clocked is right now. The ± tightens when the phone is braced, the target crosses side-on 10 to 30 m away, and the lens height or the distance is set. In Auto, two-mark calibration (Pro) tightens it further. Clocked is not a radar gun, so use it for curiosity, sport and settling arguments about whose dog runs faster, not for anything official.

What can it clock?

Cars, bikes, runners and animals, your dog included: the everyday things that go past. It works best when they cross the frame side-on. Things coming straight at you, or going straight away, are harder, and Clocked says so.

Why does it want my phone’s height?

In Auto mode Clocked works out how far away something is from where it meets the ground, and that depends on how high the camera is. It starts at 1.5 m. Change it once to match how you hold your phone.

km/h or mph?

Both. Clocked starts in the unit your region uses, and you can switch any time.

What’s free, and what’s in Pro?

Free: auto-lock, live speed, tap to switch target, Auto and Known distance modes, and the stopwatch. Pro is a one-time upgrade that adds two-mark calibration, the pass log with street survey stats, CSV export, speed alerts, box colours and styles, and speed-stamped snapshots.

Where can I get it?

Clocked is in Early Access on Google Play, and on iPhone through TestFlight: tap a badge on this page to install it. There’s nothing to sign up for here: no mailing list and no account.

Get Clocked

In Early Access on Google Play.

The free app is the whole trick: auto-lock, live speed, Auto and Known distance modes, and the stopwatch. Pro is one purchase inside the app when you want more.

Get it on Google PlayTry Clocked on iPhone with TestFlight
  • No ads
  • No accounts
  • No subscriptions