Three modes+. One tap to act.
Sentinel automatically gathers evidence — location, audio and photos — and gets help to the people who matter, the moment you need it. Built for the moments police can’t reach in time.
No account needed to look around — try a Test Drill, Demo-Walk or Safeguard trip free.
One app. Six ways to stay safe.
Each mode is built for a different moment — from silent evidence capture to a safe practice drill.
SENTINEL
Collect & alertSilently collects location, audio and photos and auto-sends them as a data package to your emergency contacts and the Sentinel team, with a plea to call the authorities for you.
Alert
Police can make itConnects you to the authorities first, then gathers evidence as the situation unfolds.
Awareness
Something seems offQuietly records and stores what is happening nearby for a short time, in case it is needed later.
Safeguard
Way home watchPlan the route home — stray and Sentinel checks in, or alerts your safety contact automatically.
Witness
See somethingCollect photo, video, voice and live location into an orderly report. Quick-call 110, 112, 911 built in.
Testing
Safe drillRun a full practice drill without notifying anyone or calling the authorities.
Everything you need, when seconds count.
Offline emergency call
Call 110, 112 or 911 through your phone’s native dialer — no internet or mobile contract needed.
GPS & live trail
Capture your fixed location and stream a live trail so help can find you.
Audio evidence
Record voice memos that are dated and saved to the incident.
Photo & video
Open the native camera for quick, dated evidence capture.
Auto-transfer
Evidence is packaged and sent to your contacts and the Sentinel team automatically.
PIN protection
The whole app locks behind a PIN — only you can open it.
Family & friends
Link loved ones and trigger remote safety actions across devices.
Clean reports
Export any incident into a tidy PDF for your personal records.
How it works
Set up
Add your emergency number, contacts and safety preferences once.
One tap
Pick a mode the moment something feels off — Sentinel starts capturing instantly.
Stay protected
Evidence is gathered silently and auto-transferred to the people who can act.
Keep records
Export a clean PDF report for your personal safety documentation.
Free to use. Yours to try.
Sentinel Blackbox is free while we’re in beta. Browse every screen without an account, and try a Test Drill, a Demo-Walk and a Safeguard trip — free, no sign-up needed.
Everything included
- All six modes
- Evidence capture & auto-transfer
- PIN protection
- Clean PDF reports
- Family & friend linking
- Safeguard way-home watch
Have a membership code?
Enter a coupon or membership code to activate your access when you create an account.
Open the appCarry Sentinel in your pocket.
Install Sentinel on your phone or laptop home screen for one-tap access — no app store needed yet. A native Google Play build is on the way.
On laptop / desktop
- Click the install icon in the address bar.
- Confirm Install to add Sentinel.
Once installed, Sentinel opens full-screen like a native app — and the offline emergency-call dialer keeps working without a connection.