Walk-Home Radar · Personal Safety
People already text a roommate when they get home. Edge Orbital makes that still work. A live iPhone game is how the map gets built. It is not Walk-Home Radar.
The job
The category bifurcates: panic-button apps assume you’re conscious enough to deliberately press something, and continuous-tracking apps assume you’re willing to be surveilled all day in exchange for being found at one moment. Neither serves the walk home.
You may not be in any state to press, scream, or call. The radar has to fire on what doesn’t happen — the missed check-in — not what does.
The radar disappears. No data, no log, no breach surface. Most nights, you walked the route, you got home, and no one knows you used the app. That’s the point.
If you don’t check in, your people get a quiet alert. Not 911. Not a stranger. The decision to escalate stays with the people who know you, the corridor, and the night.
How it works
We are building a check-in for the walk you take. You would tell the app when you’re leaving and where you’re going. That is not in the live App Store listing.
The design is three people who would notice. They would opt in once. That product is not shipping.
The design is a quiet alert to your three if you miss the deadline. Most nights nothing would fire. That layer is not built yet.
Three walks. One radar.
Why now
We don’t name victims. The families have done that work, and what they ask for is action, not commercialization. These are situations being studied. A product that does not exist yet did not change these outcomes.
The 12-minute route home. It usually takes 12. Someone notices hours later.
The Baton Rouge case, 2023. A senior leaves a bar. She gets into a vehicle she thought was her ride. Her sisters had no way to know — until morning.
A line cook closing at 4am, walking through the Quarter to her car eight blocks away. Her sister always asks her to text when she’s in the car. She forgot once. That habit is what we are trying to make more reliable.
We are studying these shapes so the product we build next is honest about what it can and cannot do. We do not claim a radar would have changed the outcome.
Common questions
Strava Beacon broadcasts your route to three contacts during a run; Road ID is a digital trace for responders after something goes wrong. Walk-Home Radar fills the gap between them: the routine walk that isn’t a workout, the corridor the existing apps don’t cover, and the missed-check-in alert that fires during, not after.
Your three get a quiet alert with your last known corridor. They can call you first — most of the time, you forgot to check in, and one phone call resolves it. If the call goes unanswered and the corridor is concerning, your three can choose together whether to escalate to 911 or to physically go look. The decision stays with humans who know you.
No. In hospitality / event-ops deployments, the operator funds the radar and onboards staff but does NOT have access to individual location data. Each person’s mesh is private. The operator sees aggregate, anonymized density (which routes have radar density, which don’t) — not who’s on which route at what time.
Tripwire’s network is designed to extend through nearby phones running the same app. The Quarter does not have that density today. We will not claim a missed check-in on Bourbon Street already routes through nearby users.
Tripwire Recon is free on the App Store. Walk-home check-in is the product we are building next. It is not in the current App Store listing.
Tripwire Recon is a live iPhone game. That is how the map gets built. It is not Walk-Home Radar.