Stop guessing your attendance.
Start certifying it.
Point any camera at your gates — the venue's CCTV or a phone on a tripod. GateProof counts everyone in and out, all day, and delivers a sponsor-ready attendance report: totals, hourly peaks, live occupancy, honest error bars. From $199 per event.
From $199 per event · No hardware · No turnstiles.
The deal at stake
Right now, your attendance number is a guess.
Security's clicker, a gut estimate, last year's figure. Sponsors and grant officers are paying against it — and increasingly, they check.
Sponsors renew on the number
A headline sponsor might pay €5,000 against your attendance claim. If you can't defend it, next year's package is the first line they cut.
Grants demand evidence
Cultural and municipal grants ask for documented attendance. “Around 20,000, I think” doesn't close a grant report.
The guess is usually wrong
Clickers and eyeball estimates drift 20–50%. Overstate and you lose trust; understate and you underprice next year's deal.
How it works
From your gates to an Attendance Report in three steps
No sensors, no installers, no badge system. Use the cameras you already have.
Point a camera at each gate
The venue's CCTV, or a phone on a tripod. Up to six counting points, indoor or open-air. Nothing to install, no turnstiles to rent.
We count every entry and exit
Draw a line on your first frame. The engine tracks each silhouette across it — in and out, all day — and rebuilds live occupancy minute by minute.
Get a sponsor-ready report
Within 72 hours: totals, hourly peaks, the occupancy curve, per-gate breakdown and honest error bars — plus a QR page anyone can verify.
Attendance Report
Example: Ribeira Summer Fair
Saturday 12 Jul · 3 gates · 10:00–23:00
- Total in
- 18,420
- Peak inside
- 3,180
- Busiest hour
- 19–20h
- Coverage
- 3 / 3
all gates
19:38
2,460 through gates
entrances
Hourly gate flow
in + out, per hour
Direction split
Honest error bars
±6% at peak density (95% CI, counting noise). Dense-crowd minutes are flagged, never hidden.
Method: sampled video count from your own cameras · counts silhouettes, not people · every figure re-checkable from the QR page.
The Attendance Report
One page a sponsor's finance team can trust.
Because every number on it is re-checkable — by a grant officer, a journalist, or the sponsor writing next year's cheque.
- Total attendance with in / out per gate
- Hourly peaks and your busiest window
- Live occupancy curve — max concurrent inside
- Confidence intervals and dense-crowd flags
- A public QR verification page
- Grant- and media-kit-ready formatting
Proof, not promises
Don't take our word for it. Check ours.
The same engine, running on a real 7-day study — with the annotated overlay and the live map to prove nothing is simulated.
See a real study
A completed 7-day count on a live street: hourly profile, occupancy and error bars — the exact report engine behind GateProof.
Open the showcaseWatch the 60-second overlay
Every silhouette boxed, tracked and counted, with the live in / out counter burned into the footage. This is the evidence layer.
Play the overlayExplore the live map
The Street Traffic Explorer on our hub is built from real measurements, tagged with their source. Nothing invented.
Open the mapPriced as a fraction of one sponsor package
Your headline sponsor pays €5,000 against an attendance claim. Certifying it costs $199.
Event Report
1 day, ≤3 entrances
The sponsor-ready one-pager for a single-day event.
- Hourly peaks & totals
- Live occupancy curve
- In / out per gate
- Honest error bars
Festival
≤3 days, ≤6 points
Multi-day, multi-gate coverage with cross-gate rollup.
- Up to 3 days
- Up to 6 counting points
- Occupancy over the weekend
- Sponsor & grant one-pager
% of one sponsor package.
“We count silhouettes, not people. No faces. No identities.Footage deleted in 30 days — or instantly.”
You count a crowd without ever identifying a single person in it.
No facial recognition — ever
Low-resolution processing by design
GDPR & EU AI Act aligned
Delete any event instantly
FAQ
Questions organizers ask
How accurate is a camera count in a big crowd?
On clear footage the engine counts within a few percent. In dense, shoulder-to-shoulder minutes accuracy drops — and we say so: those windows are flagged with wider error bands rather than hidden. You get a number a sponsor can defend, not a marketing one.
Do I have to install anything?
No. Point the venue's existing CCTV at your gates, or stand a phone on a tripod. No sensors, no turnstiles, no cabling. Up to six counting points per event.
How is this different from ticket scans or a clicker?
Ticket scans miss free entry, re-entry, guest lists and gate-crashers; clickers drift and can't be re-checked. We count everyone crossing the line, in and out, and the footage backs every figure up.
Do you identify people or use facial recognition?
Never. The engine counts silhouettes at low resolution — no faces, no identities, no tracking between visits. It's built for GDPR and the EU AI Act, and footage is deleted within 30 days, or instantly on request.
How fast is it, and can it cover multiple days?
Most single-day events are ready within 72 hours. The Festival tier covers up to three days and six counting points, with a cross-gate rollup and a weekend occupancy curve.
Can I actually prove the number to a sponsor?
Yes. Every report carries a public QR verification page and states its method and error bars, so a sponsor's finance team or a grant officer can check it independently.
From the blog
Counting & certifying attendance
Field guides for organizers — from counting a crowd with a phone to defending the number in a sponsor report.
A practical checklist to audit a festival attendance claim before you report it to a sponsor: method, error range, source, coverage, and defensibility.
How to Read Your Attendance Report
A section-by-section guide to your GateProof Attendance Report: totals, hourly peaks, the occupancy curve, error bars, confidence, and the QR verify page.
How to Estimate Event Attendance From a Sample of Footage
How sampling turns a few hours of gate footage into a full-event attendance estimate — with confidence intervals, coverage scaling, and no fake day totals.
Certify your attendance at your next event.
See the gap between security's estimate and a real count — then certify the whole event when you're ready. Attendance you can prove to sponsors and grant-givers.