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Brand activations and promo at events

A new advertising medium at events: after the light show every participant sees the sponsor’s promo in the browser: a free bet, coupon or campaign landing. A sponsor integration with measurable results: tests show 25–30% conversion from show participants

Show at the Yandex Eda festival

Works in three steps

1. QR code

Viewer scans QR code, browser opens, taps "Start"

2. Start

Raises their phone: their flashlight or screen become part of the show

3. Perks

After the show, they join giveaways and grab promos from brands

Technologies

A synchronized show from viewers’ phones: each screen and flashlight becomes a pixel of the shared picture

Works in the browser, no app download required

Works on whitelists, even when the internet is blocked

Flashlight sync without internet via ultrasound, no load on the mobile network

Mapping the picture from flashlights by row and seat or by geolocation

Pricing

Total
3,900$
Fixed price for the entire event

Promo cases

An ad in the viewers’ browser right after the showFebruary 26, 2026An ad in the viewers’ browser right after the showAfter the show the same viewers see a sponsor promo or a draw: an ad slot with high conversionRead
GROMKA.SHOW
Event marketing: why banners lose to an experience on the phone
June 1, 2026Event marketing: why banners lose to an experience on the phoneStatic advertising at events works worse and worse; brands need contact through the viewer’s phoneReadWorld Cup 2026: three infographics on group stage bettingJune 30, 2026World Cup 2026: three infographics on group stage betting9 million on a goal, odds 1.09 and 0:0, average total 1.0 vs 4.3: CIS-region betting data for the group stageRead

FAQ

How is conversion measured?
Analytics on the promo page, UTM tags, goals for sign-up or registration. We share numbers after the event
Can different sectors see different ads?
Yes, segmentation by viewer groups and different promos after the show
Does it work for concerts and festivals, not only stadiums?
Yes. Anywhere viewers raise phones: arena, festival, city event
How much does a brand integration cost?
The base price is the show itself (via the calculator, depends on audience size) plus the sponsor package: a promo page, branded light patterns in the show and a conversion report. We quote the package per task, write to info@gromka.show

Contacts

info@gromka.show@orlovskiy_rl