Blackout: Emergency Plan

Blackout is an offline emergency handbook for your household, built for iPhone. Guides, checklists, weather alerts and SOS in one place — ready for the moment the power, the signal or the internet goes down and looking things up online is no longer an option.

Everything runs locally on your phone. No account, no cloud, no trackers.

DISASTER PREPAREDNESS • Emergency guides for the home, the car, the cabin, first aid, evacuation and power outages • Step-by-step walkthrough mode — large type, one step per screen • Checklists for blackouts, go-bags, water and food supplies, storms or leaving home • Ready-made templates (flood, fire, windstorm, cyberattack, medical emergency and more) installed with one tap • Your own guides and checklists, with photos and voice notes

WEATHER ALERTS • Severe weather warnings for a saved address — CHMI for Czechia, MeteoAlarm across Europe, NWS for the United States • Notifications for new warnings, with severity level • Every alert carries concrete advice on what to do, not just the name of the hazard

EMERGENCY TOOLS • SOS light signal using the flashlight • Loud siren to attract attention and help • Emergency mode: maximum contrast, flat colors, easier on the battery and readable in the dark or at low brightness • Emergency numbers built into the content

SAFEZONE — A NETWORK WITHOUT INTERNET • Finds nearby iPhones running Blackout and links them directly — no router, no SIM, no data plan • Short messages between approved devices when the cell network is down • A radar view shows who is in range • Every device must be approved by you by hand

HOUSEHOLD AND BACKUP • Share guides and checklists between family devices • Encrypted backup (AES-256-GCM) protected by a password, transferred over AirDrop, cable or email

PRIVACY FIRST Blackout has no server. No analytics, no advertising SDKs, no trackers. Your household data stays on your device or between devices you personally trust. The app works entirely in airplane mode.

WHAT IS FREE SOS and siren, emergency mode, every guide and checklist, and weather alerts stay free forever. The one-time Blackout Household purchase (no subscription) unlocks the SafeZone network and encrypted backups. Nothing that can help in an emergency sits behind a paywall.

IMPORTANT NOTICE Blackout is an organizational aid. It does not replace emergency services, medical care, fire, police or rescue services. The SOS signal and siren are not a substitute for calling for help. If life or health is at risk, always call your local emergency number, such as 112 or 911.