Safe Crosswalk
Be seen by turning drivers
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
One tap flashes your screen and torch and speaks, so a driver turning across your path notices you.
A driver turning across your path is usually looking the other way.
They turn their head left to find a gap in traffic, then move right while still
processing it. On-road eye-tracking has found that in a large share of turns, the
driver never looks at the crosswalk at all. You are not too hard to see — their
eyes are pointed somewhere else.
Safe Crosswalk is one tap that pulls their attention back.
WHAT IT DOES
Your whole screen and your torch flash together, and a voice says "Crossing."
Tap once to start, tap anywhere to stop. It stops on its own after 45 seconds.
ONE PRESS, WITHOUT UNLOCKING
Add it to Control Center or the Lock Screen, or bind it to the Action Button.
The moment this app exists for lasts about two seconds; waking the phone,
finding the icon and tapping does not fit in two seconds while you are holding
a dog lead.
HOLD FOR URGENT
Press and hold, or use the Urgent control, when a car is already moving. Full
brightness, voice forced on, and it says "Stop. Person crossing."
It does NOT flash faster. 10 to 20 flashes per second is the range most likely
to trigger a photosensitive seizure, so the rate is capped no matter how urgent
things get.
TUNED TO THE CONDITIONS YOU ARE IN
Daylight, dusk or rain, night, and fog each need a different amount of light,
and brighter is not always better - at night a strong light hides what is around
it and costs you your own night vision, and in fog it scatters into a glare
ball. You pick, because iOS will not tell an app how dark it is and asking for
your location just to guess would cost more than it is worth.
THREE MODES, BECAUSE ONLY YOU CAN SEE THE WINDOW
• Light only — silent, and works through a closed window
• Light and sound — when you cannot tell
• Sound only — best when the window is down and the street is quiet
Whether sound reaches a driver is decided almost entirely by one thing: a closed
modern car cuts about 35 dB, so a phone would need to be nearly touching the
glass. With the window down, the same phone carries several metres. No app can
see the window from your pocket. You can.
BUILT TO PUBLISHED RESEARCH, NOT GUESSWORK
The obvious instincts — as fast and as bright as possible — are both wrong.
• Flashing is capped at 4 per second. 10 to 20 is the range most likely to
trigger a photosensitive seizure, and above 5 causes eyestrain.
• The dim phase never goes fully dark, because a light that disappears is harder
for a driver to place.
• It does not use maximum brightness. Past a point, a bright beacon starts
masking the very things a driver needs to see.
HONEST ABOUT WHAT IT IS NOT
This does not make you safe. It is one more way to be noticed. Keep making eye
contact and keep waiting for the car to actually stop. What would genuinely fix
this is street design — daylighting, leading pedestrian intervals, turn calming.
This is what one person can carry into the gap those leave.
FREE, AND PRIVATE BY CONSTRUCTION
No subscription, no in-app purchase, no ads. It contains no networking code at
all, so there is nowhere for your data to go. It stores three settings on your
device and nothing else. No account, no location, no tracking.
Ratings & Reviews
The developer, Hyun Sik Kim, 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 Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Hyun Sik Kim
- Size
- 430.1 KB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © Studio AM