Can your smartphone detect gunfire? Chicago startup puts new technology to the test
SplitSec analyzes sound on smartphones and uses corroborating detections to provide possible-gunfire alerts.
Gunshot awareness for people and places.
DETECT. CONFIRM. NOTIFY.
Use SplitSec on your smartphone or install PerimeterPAK outside your building. Awareness of possible gunfire, with privacy built in.
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Chicago Community Pilots
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Community pilots are active in four wards. Join your neighbors and help grow the SplitSec network.
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Live
Press coverage
Recent news segments featuring SplitSec
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.
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.
Sri Deivasigamani - Would You Let an App Listen for Gunshots?
SplitSec.AI founder and CEO Sri Deivasigamani joins Lars to discuss technology that turns smartphones into sensors capable of detecting nearby gunfire. Would you give an app access to your phone’s microphone if it could help police respond faster?
SplitSec 
™
Awareness starts outside your building.
A fixed exterior sensor that monitors for possible gunfire and connects your team through the SplitSec app.
For hospitals, schools, multifamily properties, and places of worship.
01
Detect
Acoustic sensor analysis
02
Corroborate
Multi-unit verification
03
Notify
Instant app safety alert
Requires at least two units and reliable connectivity. Wi-Fi standard; cellular optional.
Illustrative monitoring areas and app alert. Actual range varies with placement and conditions.
Solutions
Built for outdoor and mobile footprints where fixed infrastructure is slow or expensive. For smartphone deployments: 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
For smartphone deployments: gunshot awareness across flexible perimeters, no wiring and no cameras.
Campuses
Gunshot awareness for campus staff, responders, and administrators.
Media
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