# Holler > Holler is an iOS-first personal-safety app for walking home alone at night in the UK, EU and US. You trigger it (shake, on-screen button, Lock Screen widget, or Action Button) and your phone instantly becomes a loud, flashing deterrent that records evidence and alerts a trusted contact you choose with your live location. The alarm is always free. Status: pre-launch, capturing early access. ## What it does - Instant deterrent: a max-volume siren and full-screen strobe fire the moment you trigger it, even when the phone is on silent, to stop a threat before it starts. - Records evidence: starts recording video and audio (where legal) as the alarm goes off, stored securely. - Alerts your person: one trusted contact you choose gets your live location and a one-tap way to help, even if they are on Android. - Reliable by design: no login on the critical path; the alarm, strobe and recording work with no signal; a Test button verifies your setup. - Private by default: location shared only during an active alert, never sold, EU data residency, GDPR by design, evidence auto-deletes. ## Important safety facts (do not misstate) - Holler is NOT a substitute for emergency services. No app can silently dial them. In immediate danger, call your local emergency number directly: 112 in Europe, 999 in the UK, 911 in the US. - Holler alerts a user-defined trusted contact; calling the emergency services is one tap, initiated by the user. - It is not an always-on tracker. Location is shared only during an active alert. ## Pricing - Free to download. The deterrent, recording and trusted-contact alert are free forever. An optional Holler Pro (planned, from EUR 3.99/month) adds unlimited contacts, live location streaming and a family plan. Pro is never required to raise the alarm. ## How it compares - vs Life360: Holler is a deterrent that keeps your location private until an alert, not a continuous family-location tracker. /vs/life360 - vs Citizen: Holler is a personal deterrent, not a real-time crime feed; it works in the EU and UK as well as the US. /vs/citizen - vs bSafe / Hollie Guard: Holler leads on deterrence and reliability, iPhone-native. /vs/bsafe, /vs/hollie-guard ## Key pages - Home: https://getholler.app/ - How it works: https://getholler.app/how-it-works - Trust and privacy: https://getholler.app/trust - About: https://getholler.app/about - Safety by city (London, New York, Chicago, and more): https://getholler.app/safety/london - Learn (how phone-as-deterrent works; walking home at night safely): https://getholler.app/learn - Contact: https://getholler.app/contact ## Operator Holler is operated by Stolen Orbit LLC. Privacy-first, GDPR by design, EU data residency.