7 ways to trigger
the alarm

App button

Hold the button in the app. Sends instantly.

The most visible trigger. Hold the big SOS button for ~1.5 s — a brief countdown starts. Cancel if it was accidental. Don't cancel — alarm fires and your circle is notified immediately.

Power button

Sequential screen on/off, 3–4 times. Covert — works from your pocket.

The invisible trigger. Turn the screen on and off 3–4 times in a row while the phone is in your pocket. No unlock, no app open. Nobody sees you doing anything — the pattern fires the alarm silently.

BLE button

A $3 Bluetooth keychain. Press through fabric, one year on a single CR2032 battery.

The most versatile hardware trigger. Clips to a bag strap, keychain, or belt. The app sees it as a camera remote — one click fires the alarm instead of taking a photo.

Fall detection

Gyroscope watches 24/7 for a fall signature. No action needed — cancel the countdown, or alarm fires automatically.

Designed for workers at height, the elderly, and anyone who could be incapacitated. Detects freefall, hard impact, sustained stillness. Configurable sensitivity and 5–30 s delay.

Dead man timer

Set a check-in deadline before going somewhere. Miss it — circle gets the alarm automatically. No action required from them.

The deferred trigger. You set it up before a risky situation — solo night shift, hike, first date. If you don't confirm "all OK" by the deadline, it fires on its own. Works like "I'll call when home" — but automatic.

Absence of activity

Phone detects no interaction for a set period — no unlocks, no movement. Alarm fires on its own.

The passive trigger. No per-incident setup needed. If something happens and you stop using your phone, the system notices. Unlike the dead man timer, this requires no conscious check-in — the phone watches for you.

NFC tag

Stick a tag under your desk. Touch phone to it — silent alarm fires immediately. Nobody sees anything unusual.

The invisible trigger. Stick an NFC sticker under your office desk, in a drawer, or by the bed. Pressing your phone against it fires a silent alarm — looks exactly like you just put your phone down. Coming soon.