When you need help, Kai sends your live location to your contacts and calls them — silently, offline, directly from your iPhone.
Free download
Voice, button, timer, or fall detection
Sent to your selected contacts
To your primary contact
Your safety should never depend on an internet connection or someone else installing an app. Kai monitors your health, knows your surroundings, and works entirely on your device.
Every safety feature runs without WiFi or cellular data. Triggers, health monitoring, and fall detection all work without a connection.
Your contacts receive standard SMS and phone calls from your iPhone. They never need to install anything.
Every trigger works without sound or vibration. Nobody nearby will notice when you ask for help.
No accounts, no servers, no complexity. Just open Kai and follow the setup.
Choose the people who should be notified when you need help. Add as many as you like.
Write your personal safety SMS. Kai automatically attaches your live location via Apple Maps.
Kai monitors your vitals, finds safe places nearby, and offers multiple ways to trigger help. Your contacts get alerted the moment you need them.
Every screen in Kai is purpose-built. Quick access to your safety triggers, trusted contacts, and every feature at a glance.
Choose who gets notified when you need help.
Your safety command center. Every trigger, one tap away.
Help points, fall detection, widgets, and more.
Multiple safety modes, health monitoring, and nearby help. All deeply integrated into iOS and ready from day one.
Trigger your help chain with just your voice. Works from the lock screen with no setup required.
Press and hold for one second. A 3 second countdown appears. Cancel or let it trigger your safety chain.
Set a duration. If you do not confirm safe when it expires, Kai alerts your contacts automatically.
Advanced 3 phase detection with activity aware intelligence. A 60 second grace period lets you cancel before Kai escalates.
Always ready on your lock screen and Dynamic Island. One tap to trigger without opening the app.
Intelligent notifications based on time, location, weather, vital signs, and activity. Morning briefings, night watch, health alerts, and contextual safety tips throughout your day.
Kai reads your heart rate variability from Apple Health and alerts you when your vitals look unusual. Continuous monitoring over 7 days detects trends before they become problems.
Find police stations, hospitals, pharmacies, and support organizations near you on an interactive map. Always know where help is within reach.
Kai is more than a safety button. It monitors your vitals, watches your surroundings, and checks in on you throughout the day with smart, contextual signals.
When a trigger fires, Kai sends an SMS with your live Apple Maps location to all your trusted contacts and calls your primary contact.
Kai lives where you need it most. Widgets give you one tap access. Live Activities keep your active session visible without opening the app.
Opt-in audio evidence during active alerts. AES encrypted on your device, never uploaded, and auto-deleted after 7 days.
Start your day informed. Severe weather, unusual vital sign trends, regional safety alerts, and inactivity warnings, all in one morning notification.
Run a full end-to-end test. Your contacts receive a clearly marked test SMS so you can verify everything works.
Fall detection and health data from your Apple Watch. Vital signs, movement, and safety stay in sync across your devices.
English, German, Spanish, French, Polish, and Russian. Your safety SMS is sent in the language you choose.
SMS templates, notification frequency, contact priorities, and Siri voice commands. Make Kai truly yours.
A native iPhone app, deeply integrated into every part of the Apple ecosystem. No compromises.
Built entirely with Apple's own frameworks. No web views, no hybrid layers. Pure native performance.
Reads heart rate variability directly from Apple Health. Detects unusual trends and alerts you before something becomes a problem.
Finds police, hospitals, and pharmacies near you using Apple Maps. Navigate to the nearest safe place with one tap.
Whether it is your daily commute, a night out, or simply peace of mind. Kai adapts to your life.
Activate Companion Mode for your evening commute. Kai shows nearby safe places and your contacts can be alerted with one tap from your lock screen.
Set a Check-In Timer for your late shift or night out. If you do not check in, Kai contacts your people automatically.
Find hospitals and police nearby in unfamiliar places. Multi-language SMS templates keep your contacts informed, no matter where you are.
Fall detection adapts to your activity level. Vital signs monitoring tracks your heart rate variability during workouts and beyond.
Set up Kai for anyone you care about. Health monitoring, daily briefings, and fall detection give the whole family peace of mind.
Kai is for everyone. Vital signs, nearby help, proactive signals. Simply knowing it is there changes how you move through the world.
Kai was built with one rule: your safety data never leaves your iPhone. No cloud, no servers, no exceptions.
Safety data, contacts, vital signs, audio evidence, and location history live exclusively on your device.
Voice commands, fall detection, health monitoring, SMS alerts, phone calls. Everything works without an internet connection.
No sign up, no email, no personal data collection. Install Kai, set your contacts, done.
Silent triggers, vital signs monitoring, nearby safe places, and trusted contact alerts. Join the free beta and set up in under two minutes.
