Engine sound that follows your foot
17 engines — American V8, V10, V12, flat-four and flat-six, turbo inline engines, rotary, diesel — synthesized from speed and acceleration, with shifts, overrun crackle and blow-off valves.
Zero cylinders. All the thrill.
Electric cars are fast and silent — and miss the revs, the shifts and the crackle on overrun. ZeroCyl synthesizes 17 engines from your real speed in real time, and warns you of speed cameras ahead.
Works on phones, tablets and the Tesla browser
Speed-camera alerts
Fixed cameras, average-speed zones and live reports of mobile traps, with spoken alerts from 1 km. Your speed turns red when you are over. Taiwan, Hong Kong, South Korea, Japan, Singapore and the United States; data updated daily.
Know what is ahead
A large label says which kind of camera is ahead and flashes when it matters, the distance counts down, and the speed limit of your road sits next to your speed.
Cars, scooters and big bikes
Pick your vehicle: on a scooter, cameras on freeways, expressways and elevated roads stay quiet, and slow-lane limits apply.
Keeps going behind your navigation
The apps run in the background: navigation, music and a locked screen don’t stop the sound or the alerts, and music dips while an alert is spoken.
Free, no sign-up
Every feature is free, no account, no stored tracks. In 繁中, 简中, English, 日本語 and 한국어.
Where speed-camera alerts work
The engine sound works anywhere; speed-camera alerts cover these places for now. Japan and the United States are partial (community-tagged data). In the US everything switches to miles.
- Taiwan
- Hong Kong
- South Korea
- Japan partial
- Singapore
- United States partial
Four ways to start
Web app
Open zerocyl.app and tap “Use the web app”; add it to your home screen and it behaves like an app. Tesla owners: open it in the car’s browser.
iPhone app
Runs in the background; the next camera shows on the Lock Screen and in a corner of CarPlay. Public beta on TestFlight coming soon.
Android app
Runs in the background; the drive notification shows the next camera and it can offer to start when your car’s Bluetooth connects. Download the beta here now.
Tesla
Open zerocyl.app in the touchscreen browser and the sound plays through the car’s speakers, no phone needed. See the setup guide.
Do not use your phone while driving. ZeroCyl is for entertainment; speed-camera alerts are a guide only — follow the signs on the road.