Loud isn't enough.
You have to be believed.
A loud alarm protects the moment. Only proof protects what happens next. ProofGuard alerts the people who care, captures what happens, and proves it — on guard the moment you feel it.
When did you last run toward a car alarm?
You didn't. Nobody does. The world has trained itself to ignore loud.So a safety alarm whose entire idea is “be loud as a jet engine” inherits that problem the day it ships — it begs strangers to care, and strangers have stopped.
ProofGuard doesn't beg strangers. It tells the people who'll actually come — and it keeps the proof.
The Evidence Loop
Every other alarm stops at step one or two. ProofGuard runs the whole loop — protecting you in the moment and documenting it for after.
Trigger
Three ways: pull-pin, button, or a spoken keyword. Whatever's fastest when your hands are shaking.
Deter
Optional · situationalA 130dB siren — but only when noise actually helps. Silent when silence is safer.
Alert
Your named contacts get a text and a phone call. Not strangers who'll ignore it — the people who'll come.
Locate
Live GPS streams to your people the whole time, so they know exactly where you are.
Prove
The part nobody else doesTimestamped audio — including the 90 seconds before you triggered. Proof, not just your word.
Real fear isn't a single button.
Everyone else gives you one panic button — all or nothing. ProofGuard has two phases, because the scariest moment is the one where you're not sure yet.
Someone's walking behind you. You're probably fine. But you arm it anyway.
Your location quietly streams to your people. The evidence buffer starts rolling. Your contacts are put on standby — no siren, no fuss. You stay in control, and you're covered if it turns.
The pull-chain hardware Aaron's prototyping isPhase 2. A tap in the app is Phase 1. The device you're building is already the two-phase model.
One product, three ways in.
A keychain that does more than scream
Pull-pin + button hardware, 130dB siren, USB-C rechargeable. Pairs to your phone over Bluetooth — and doubles as a key-finder, so you actually carry it every day.
The brain behind the alarm
iOS + Android. Manages your contacts, the Evidence Loop, silent/loud modes, live location and the evidence buffer. Free to start; premium unlocks the full loop.
Device + app, as one system
The flagship. The hardware and the app are designed to work as one — the only UK consumer brand combining both around the Evidence Loop. This is ProofGuard.
Own your safety. No lock-in.
Buy the device once. Add the app free. The bundle is where it all works as one.
- ✓Pull-pin + button + 130dB siren
- ✓Bluetooth + key-finder
- ✓Free app, basic features
- ✓Everything in the device
- ✓Full Evidence Loop + two-phase
- ✓Pre-roll evidence & silent mode
- ✓Live location to your people
- ✓Works with any alarm you own
- ✓Emergency contacts + location
- ✓Premium unlocks the full loop
UK · iOS + Android · Pricing indicative, pre-launch.
“It was their word against mine.”
The hardest part of what happens after isn't the police response time. It's being believed. Every other safety product helps you survive the moment, then leaves you with nothing to show for it.
ProofGuard captures timestamped audio — including the lead-up — so what happened is on the record. Not your word. Proof.