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OnSiren

OnSiren Limited

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About this app

OnSiren is a real-time shared awareness and threat intelligence platform for the UK's SIA-licensed security officers. YOUR LOCAL THREAT INTELLIGENCE Alpha One, the AI in the system, briefs you on what's happening around you: what's changed, what to look out for. And it warns you the moment things change. REPORT IN SECONDS See something worth knowing? One press reports it to the officers around you, with the location. Everybody who needs to know, knows at once. A RADIO IN YOUR POCKET Push-to-talk with the officers nearby. Press and hold to speak. Hear what's said around you, live. BUILT FOR LICENSED PROFESSIONALS A network for security officers. You need a valid SIA licence to join. Privacy: onsiren.com/privacy · Terms: onsiren.com/terms What's New: Get briefed on what's happening around you. Report incidents in seconds. Push-to-talk with the officers nearby.

What's new

Version 0.5.1 · Oct 26, 2026

What's new in v0.5.1 Sign up with email (phone is for login only) and sign in with Google SIA card scan and face liveness check removed from sign-up GL users can skip the licence step Private channels with invite links and moderator tools Switch channel: unread badges, town names, postcode search Channel chat: Officers tab and emoji reactions Channel cards show who is talking Add a voice note or message after an alert is sent Redesigned alert sent screen Advisories show formatted text, photos and voice notes Other officers see your approximate location now, not exact Faster map and grouped officer pins No-internet banner and offline save prompt On Air radio course in the app with a certificate "How to use OnSiren" guides and Your activity on Profile iPhone Action Button setup walkthrough Earbuds button for PTT on Android Alpha One can open screens and switch channel Silent "Copy that" answer for Radio Check In-app update screen Rate OnSiren prompt Marketing preferences in sign-up and Settings GA4 analytics

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