HollerGet early access

Safety in Boston

Walk home through Boston like someone's got your back.

The walk home after the T stops running, quiet streets in the small hours. Holler is built for exactly those moments in Boston, so the phone already in your hand can act the instant you need it.

Why people in Boston 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 Boston

Holler keeps your local emergency number, 911, one tap away during an alert, and the siren and strobe work even with your phone on silent. Where local law requires all-party consent for audio recording, Holler defaults audio off behind an explicit opt-in. Holler is not a substitute for the emergency services; in immediate danger, call 911 directly.

Local emergency number: 911

Boston questions

Is Holler available in Boston yet?

Holler is opening early access on iPhone in its first cities, with Boston on the list. Join the early-access list and we will email you the moment it is ready to download.

Does Holler call 911 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 911 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.

Other cities

Be first to walk home with Holler in Boston.

Join the early-access list and we will email you the moment it is ready in your city. No spam, ever.

Holler is not a substitute for emergency services

If you are in immediate danger, call your local emergency number directly: 112 across Europe, 999 in the UK, 911 in the US. Holler alerts a contact you choose and helps you raise the alarm, but it does not call the emergency services for you, and it may not work in all circumstances.