Smooth driving, scored
Anyone can go fast. Not everyone can go smooth.
Play the web game right here: a made-up road every day, just for fun. Then there's the real thing — an iPhone app that scores how smoothly you drive actual roads. Finishing sooner never scores higher.
- of every app score is smoothness
- 45%
- clocks or rivals on screen while you drive
- 0
- cars to drive in the browser game
- 50
- new road a day, the same for everyone
- 1
01 Two ways in
Here, it's a game. Out there, it's real.
The daily road on this site is a web game: make-believe roads, make-believe traffic, ghosts and medals, played in a browser for fun. The Smooooth Operator app is the real-life one — it scores the drives you actually make, on real roads, from your phone's own sensors. Same idea in both: the smoothest drive scores highest.
Real life · the iPhone app · coming soon
Your real drives, scored.
Real public roads near you, measured by your phone's sensors and verified on our servers. Nothing to chase on screen while you drive — the score comes after you park.
How the app works
Make-believe · the web game · free
A made-up road a day, right here.
A fictional road every day, set in a different country with its own rules of the road — or an endless one in Unlimited. Keyboard, gamepad or tilt your phone, and keep your streak going. It's a game, and it stays one.
Drive it nowToday's road
A new road every day
The same road for everyone today, and a new one at your midnight. Drive it as often as you like — your best run of the day is the one that counts. Three medal ghosts drive it with the same controls you have:
- Bronze is in a hurry and gets there first.
- Silver drives it well enough.
- Gold is calm, arrives last of the three — and scores highest.
02 Pace
Finishing sooner never scores higher.
Every road has a calm reference pace. Pace is full marks from that pace to about a third slower — and it falls away hard on the quick side. Arrive 10% sooner and you keep half; 25% sooner and you keep a tenth.
- HurriedQuicker than the reference: pace points fall away steeply.
- CalmFrom the reference pace to about 35% slower: full marks.
- UnhurriedMuch slower: points fade gently. No need to crawl.
The same curve scores drives in the app and on the daily road. Speeding costs you again under speed limits. On the daily road, any time slower traffic holds you up is added to the reference, so waiting patiently costs nothing.
Hurried. Arriving sooner than the road's calm reference pace drops pace to 5,000 of 10,000 — and hurrying usually costs smoothness and control as well.
In the app: 1,000 of 2,000 pace pointsIn the game: 800 of 1,600
03 Scoring
One score out of 10,000.
Four disciplines on real roads. Six on the daily road: the app's four, scored by the app's own code, plus two game-only rules for sharing the road with traffic.
The iPhone app
Measured by GPS, accelerometer and gyroscope. Scored on the server.
- Smoothness45%Gentle braking, acceleration and cornering; low jerk.
- Control25%Braking and cornering the same way every time, without see-sawing corrections.
- Pace20%Closeness to the road's calm reference pace. Arriving sooner scores lower.
- Legal10%Staying at or under the speed limit, wherever the data is reliable.
Today's road, in the browser
The app's four disciplines and scoring code, plus Lane and Traffic.
- Smoothness38%The coffee cup on the dash spills when you brake, accelerate or turn harder than the scorer counts as smooth.
- Control20%Consistent inputs, no see-sawing.
- Pace16%The same curve as the app.
- Lane11%Keep to your lane, signal every lane change, and start an overtake only across a dashed centre line.
- Speed limits8%The posted limits along the road.
- Traffic7%A two-second gap, no overtaking into oncoming cars, and no contact.
04 The iPhone app
Your real drives, scored.
Smooooth Operator turns the roads you already drive into courses with a score — measured by your phone's sensors, scored on our servers, and shared as a card with the shape of your road on it.
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01 / 06
Safety first. Every time.
Before your first drive, the app asks you to agree to its rules: mount your phone, never interact with it while the car is moving, and follow every traffic law and speed limit. Driving faster cannot improve your score.
-
02 / 06
Pick a real road.
Courses are real public roads with a start gate and a finish gate — coast roads, canyon roads, city loops. Each has a calm reference pace for scoring, and it is never shown to you as a target.
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03 / 06
Eyes on the road.
While you drive, the screen shows how far along the course you are and nothing to chase: no clock, no rival, no score. The run is scored when you finish.
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04 / 06
One score. Four disciplines.
Smoothness and control come from the accelerometer and gyroscope: how gently and how consistently you brake, accelerate and turn. Pace peaks at the road's calm pace, and speeding costs you under Legal. Speed is not a score.
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05 / 06
Verified, or not ranked.
Your phone shows a provisional score; the server recomputes every run independently, and its number is the one that counts. Runs that can't be verified are kept, scored and shown to you — and ranked nowhere.
-
06 / 06
Share the card, not your route.
Your card carries the shape of the road, your score and four sub-scores — never a finishing time. A ghost in the app is a record of a finished drive, never a GPS trace, and never shown live against another driver.
05 The garage
50 cars. One way to score them.
Drive the daily road in a city hatchback, an estate, an off-roader or a supercar. Each has its own physics, built from the real car's public figures. Medal ghosts always drive the house Smooooth GT, so a medal means the same whatever you choose.
- cars, including the house Smooooth GT
- 50
- makers of real production cars
- 33
- classes, city car to pickup
- 16
- kW of power, smallest to largest
- 61–610
06 Sharing the road
Traffic, lanes and the two-second rule.
The daily road isn't empty. Some days the traffic is light, some days busy: slower cars ahead, oncoming cars, and a centre line that tells you when you may overtake. Two disciplines, Lane and Traffic, score how well you share the road.
Keep left. Or right.
Each day's road keeps to the side its country does — left in the UK, India, Japan or Australia, right in most of the world. Keep to your lane: no cutting corners across the centre line, no riding the edge line.
Dashed to pass. Solid to stay.
Start an overtake only where the centre line is dashed and the road ahead is clear — never across a solid line, never towards oncoming cars.
Signal, then move.
Indicate before every lane change, with Q and E, a controller's bumpers or the on-screen buttons. Don't cut back in close.
Two seconds back.
Keep at least a two-second gap to the car ahead. Any touch costs points, and a real hit ends the run.
Patience is free. Time spent held up behind slower traffic is added to the road's reference pace, so waiting behind a truck costs nothing — and a legal overtake gains nothing either.
Safety
Drive safe. Every time.
This is not a racing game. Nothing in the app is timed against another driver. There is no clock and no rival on screen while you drive. Never interact with the app while moving. Mount your phone before you start. Follow every traffic law and speed limit. Driving faster cannot improve your score — the scoring is built so that hurrying and reckless driving both lose.
- Mount your phone before you start.
- Never touch the app while the car is moving.
- Follow every traffic law, signal and speed limit.
- Stop a run whenever conditions call for it.
The daily road on this site is a game on fictional roads. It is not driving instruction, and nothing in it is a suggestion for how to drive in the real world.
07 Questions
Good questions, short answers.
More in support and how it works, or write to support@smoooothoperator.com.
Does driving faster improve my score?
No. Pace is scored against each road's calm reference pace: full marks from that pace to about a third slower, and fewer points the sooner you arrive. Speeding costs you again under speed limits, and hurrying usually costs smoothness and control as well. That is true in the app and in the browser game.
Is the iPhone app available yet?
Not yet. It is coming soon to the App Store, and every “Get the app” link on this site will point to the App Store listing as soon as it is live. Until then, the daily road is free to drive in your browser.
What does the app measure, and when?
Only during an active run: your phone's GPS to follow the course and check speed limits, and its accelerometer and gyroscope to measure how smoothly and consistently you brake, accelerate and turn. Your phone shows a provisional score, and the server recomputes and verifies every run.
Do I need an account or a download to drive the daily road?
No. The daily road at smoooothoperator.com/play is free and runs in your browser with no account. Your best runs and settings stay in your browser's local storage on your device.
Does overtaking slower traffic help my score?
No. On the daily road, pace is measured against the road's calm reference pace on an empty road, and any time slower traffic holds you up is added to that reference. Waiting patiently behind a slower car costs nothing, and a legal overtake gains nothing.
What do I need to play?
A current browser with WebGL 2, such as Chrome, Safari, Firefox or Edge, on a computer, tablet or phone. Drive with a keyboard, a gamepad or the touch controls, in landscape or portrait.
How is the browser game scored?
Out of 10,000, by the app's own scoring code plus two game-only rules: smoothness 38%, control 20%, pace 16%, lane discipline 11%, speed limits 8% and traffic 7%.
What are ghosts?
In the game, a ghost is a recorded drive you can drive alongside: Bronze, Silver and Gold medal ghosts every day, your own best, or a friend's ghost from a shared link, which your browser re-drives and checks. In the app, a ghost is a record of a finished drive to compare after you park. It is never a GPS trace and never shown live while you drive.
Are the cars in the game real?
The garage holds real production cars alongside the house Smooooth GT. Each car's physics is built from its public figures, and the names only describe the car the physics approximates. Smooooth Operator is not affiliated with or endorsed by any manufacturer, and no logos are used. See the garage.
Is my data private?
The app collects location and motion data only during a run, never shows your route to other drivers, and contains no ads and no third-party trackers. The website keeps your game progress in your own browser. The privacy policy has the details.
Road #— is open
The road's ready when you are.
A new one every day, the same for everyone. Take it smooth.