Never lose belongings at your next event
Sentinel turns any event — a camp, conference, service, or wedding — into a shared lost-and-found. Register items with a QR, and whoever finds them can return them in seconds.
How it works
Three steps. No app install required for finders.
Create or join an event
Organizers create an event and share a 6-character code. Attendees join with one tap.
Register your items
Add belongings to the event — laptops, bags, instruments, keys. Each gets a printable QR code.
Scan to recover
Anyone who finds an item scans the QR. The owner is alerted instantly and can claim it.
Built for real events
Everything organizers and attendees need to keep things accounted for.
Event-based tracking
Organize lost-and-found around the events you actually run — camps, conferences, services, weddings.
QR-tagged items
Every registered item gets a unique QR code. Print, stick, or attach it to anything worth tracking.
Real-time alerts
Get notified the moment someone marks your item lost or found at the event.
Anyone can verify
Found something? Scan the QR — the rightful owner is contacted instantly, no account needed.
Running an event soon?
Set up your first event in under a minute. Free for organizers and attendees.
Get started