Uses the device's screen or camera flash to create strobe effects or full-screen blue and red flashing lights.
Some versions include anti-theft alarms or "fake call" features to help users feel more secure in uncomfortable situations. Police Siren App
These apps, like Police Siren Sounds - Flasher or Police Siren Sounds and Lights , focus on high-quality audio effects (wails, yelps, hooters) and visual light animations to mimic emergency vehicles. Uses the device's screen or camera flash to