Safety in London
Walk home through London like someone's got your back.
Late buses, long roads between stations, the last stretch home. Holler is built for exactly those moments in London, so the phone already in your hand can act the instant you need it.
Why people in London use Holler
Phone-snatching and late-night robbery are part of life in every big city, and the walk home is where people feel most exposed. Holler does not trade on fear. One move turns your phone into a loud, flashing deterrent, starts recording the scene, and shares your live location with one person you trust, wherever they are.
Set up for London
Holler keeps your local emergency number, 999, one tap away during an alert, and the siren and strobe work even with your phone on silent. Holler is not a substitute for the emergency services; in immediate danger, call 999 directly.
Local emergency number: 999
London questions
Is Holler available in London yet?
Holler is opening early access on iPhone in its first cities, with London on the list. Join the early-access list and we will email you the moment it is ready to download.
Does Holler call 999 for me?
No. No app can silently dial the emergency services. Holler alerts a trusted contact you choose and gives you a one-tap button to call 999 yourself. It is not a substitute for emergency services.
Will the alarm work with no signal?
Yes. The siren, strobe and recording are local to your phone and need no connection. Alerts and evidence queue and send the moment you are back in coverage.
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Be first to walk home with Holler in London.
Join the early-access list and we will email you the moment it is ready in your city. No spam, ever.