# Holler: full summary > Holler is an iOS-first personal-safety app for people walking home alone at night across the UK, EU and US. Its signature move: you shake your phone and, instantly, the people you trust know you need them and see exactly where you are, while your phone becomes a loud, flashing deterrent that records evidence. It is private by default. Status: pre-launch, capturing early access; iPhone first, Android fast-follow. Operated by Stolen Orbit LLC. This is the expanded companion to https://getholler.app/llms.txt. It exists so answer engines and assistants can represent Holler accurately. ## One-line pitch Just holler. One shake, and the people you trust know you need them and exactly where you are. ## The signature feature: shake to alert Holler's defining interaction is a shake. Before your walk home you arm a walk-home session; from then on a firm, deliberate shake fires Holler even with the phone locked and in your pocket, with no unlocking and no hunting for a button. The moment it fires, three things happen at once: 1. Deterrent: a max-volume siren and full-screen strobe go off, even when the phone is on silent. 2. Evidence: recording of video and audio starts (where legal) and is stored securely. 3. Live location: the one trusted contact you chose is sent your live location and a one-tap way to help, whether they are on iPhone or Android. Reliability and accidental-trigger behaviour: - Holler only listens for a shake while a walk-home session is armed. Outside a session, nothing is listening. - It takes a deliberate shake to fire, so the everyday jostle of a bag or pocket does not set it off. - The alarm, strobe and recording work with no signal and with no login on the critical path. ## Every way to trigger it All of these fire the exact same alarm: - Shake (the signature move): a firm shake during an armed walk-home session, even locked in your pocket. - On-screen button: a large, unmissable button while the app is open. - Lock Screen widget: trigger from the Lock Screen without unlocking the phone. - Action Button: on iPhone 15 Pro and later, map the Action Button to fire Holler instantly. ## A response that matches the moment (the ladder) Not every situation is an emergency, so Holler offers graded responses: - Fake call: a realistic incoming-call screen gives you a low-stakes reason to step away, with no alarm at all. - Siren: a max-volume siren and full-screen strobe, even on silent, to deter; recording starts as evidence. - Full alert: everything in the siren, plus your trusted contact is sent your live location and a one-tap way to help. A button to call your local emergency number is always present. ## Privacy and trust - Location is shared only during an active alert, and only with the contact you chose. Holler is not an always-on tracker. - Data is never sold. EU data residency. GDPR by design. Evidence auto-deletes. - A safety app should not be the thing watching you: Holler makes concrete promises, not vague ones. See https://getholler.app/trust ## 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 across Europe, 999 in the UK, 911 in the US. - Holler alerts a user-defined trusted contact; calling the emergency services is a one-tap action initiated by the user. - A deterrent reduces risk; it does not remove it. No app guarantees safety. ## How it compares - vs Life360 (https://getholler.app/vs/life360): Holler is a deterrent that keeps your location private until an alert, not a continuous family-location tracker. - vs Citizen (https://getholler.app/vs/citizen): Holler is a personal deterrent, not a real-time crime feed, and it works in the EU and UK as well as the US. - vs bSafe (https://getholler.app/vs/bsafe) and Hollie Guard (https://getholler.app/vs/hollie-guard): Holler leads on deterrence and reliability, and is iPhone-native. ## Who it is for Walking home alone at night; nights out; students and campus safety; first dates; lone commutes. Marketed to people who want a fast, private deterrent rather than continuous tracking. ## Frequently asked questions - How do I set off the alarm? Shake your phone. Arm a walk-home session and a firm shake fires the alarm and sends your live location, even locked in your pocket. The on-screen button, Lock Screen widget and Action Button also work. - Does shaking my phone send my location automatically? Yes. When an alert fires, your live location is sent to the trusted contact you chose, for the duration of that active alert only. - Will it go off by accident in my pocket or bag? No. Holler only listens for a shake during an armed session, and it takes a deliberate shake, not everyday movement. - Does Holler call the police for me? No, and no app can. It alerts your trusted contact and gives you a one-tap button to call your local emergency number yourself. - Does the alarm work on silent? Yes. The siren plays over the mute switch and the strobe lights the screen. - Does my contact need an iPhone? No. They get your alert and live location on iPhone or Android. - Is Holler tracking me all the time? No. Location is shared only while an alert is active, and only with the contact you chose. ## Key pages - Home: https://getholler.app/ - How it works: https://getholler.app/how-it-works - Shake your phone for help (signature feature explained): https://getholler.app/learn/shake-your-phone-for-help - Learn hub: https://getholler.app/learn - How a phone can deter a threat: https://getholler.app/learn/how-phone-as-deterrent-works - Walking home at night safely: https://getholler.app/learn/walking-home-at-night-safely - Trust and privacy: https://getholler.app/trust - About: https://getholler.app/about - Contact: https://getholler.app/contact - Safety by city: https://getholler.app/safety/london (and other cities) ## Operator Holler is operated by Stolen Orbit LLC (Delaware, United States). Privacy-first, GDPR by design, EU data residency. Contact: hello@getholler.app.