Potential ShotSpotter replacement could rely on cellphones
A new program is being tested in the Chicago area to potentially replace ShotSpotter, and it relies on mobile phones to detect gunfire.
Gunshot awareness in seconds
DETECT. CONFIRM. NOTIFY.
SplitSec uses everyday smartphones to detect possible gunfire, help people notify those they care about, and share nearby safety awareness with the community. Privacy-first, on-device detection. No continuous recording or audio streaming. Runs on Android phones.
PATENTS PENDING.
Today
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SplitSecWith SplitSec.AI™
How it works
Coordinated acoustic grid
Phones work together inside the active site boundary to create broader site awareness.
Multi-device corroboration
Matching detections raise confidence and help alert the right people faster.
Infrastructure free
Deploy in minutes using smartphones. No sensors, wiring, or fixed hardware required.
Live
Press coverage
Recent news segments featuring SplitSec
Chicago startup SplitSec uses your phone to detect gunshots | ChicagoLIVE
A Chicago startup is using artificial intelligence to detect gunshot sounds using your phone. SplitSec founder and CEO Sri Deivasigamani joins ChicagoLIVE to explain why the system was developed and how it works.
Can Your Phone Warn You When Shots Are Fired? Gunshot Detection App Tested In 2 Chicago Wards
SplitSec, a Chicago company, says its app uses residents' phones instead of the fixed acoustic sensors used by the controversial Shotspotter program, which was discontinued by the city.
Pilot same day with SplitSec 
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Preconfigured phones in a rugged case for portable gunshot awareness. Hand out devices, power on, and get coverage in minutes.
What's included
Ready-to-use phones, protective case, labels, quick start guide, and a placement plan.
Deploy anywhere
No cameras. No wiring. No permanent installs. Built for events, patrol routes, and temporary footprints.
Setup in minutes.Move coverage.Measure results.
Solutions
Built for outdoor and mobile footprints where fixed infrastructure is slow or expensive. No wiring, no cameras. Open a solution guide to see recommended setups, roles, and rollout metrics.
Cities
Awareness for parks, residential areas, and municipal corridors without cameras.
Guard companies
Portable coverage for patrol routes, lots, and temporary posts.
Outdoor events
Gunshot awareness across flexible perimeters, no wiring and no cameras.
Campuses
Outdoor perimeter awareness for staff, responders, and administrators.
Media
Featured in
As seen on major news outlets
