There were reports from domestic and foreign users that the emergency siren app was somewhat effective in preventing crime.
As a developer I am proud of the emergency siren as it is performing the proper function in line with the purpose of development. ^^
Be sure to install the emergency siren on your loved ones and children's smartphones.

■ Siren
A siren sounds with an emergency siren signal. Try using it in case of emergency.
You can adjust the siren sound volume. Not only that you can also adjust the media volume on your device (Emergency Siren > Settings).
If the device is shaken while the emergency siren menu is running it moves to the current location. (device shake detection sensor)
You can start or stop the siren by clicking on the screen. (Same function as the button at the bottom)

■ Led Flashlight
Provides LED headlight function by utilizing camera flash.

■ Screen Light
The screen of your smartphone becomes the headlight.

■ Led Display
Provides LED billboard effect. Please mark the letter you want.

■ Text Blinker
It can be used mainly for purposes such as ventilation and induction at night.
It can be exposed by entering text. (When you touch the screen a dialog to enter text pops up.)
If you touch and hold the screen a dialog that can change the color is exposed.

■ Emergency numbers
We provide emergency phone numbers for every country in the world.

■ App introduction and settings
Introduction to emergency siren
Settings related to emergency siren


If you use the widget on the main screen you can run the emergency siren program right away. (Caution: The siren works right away.)
Please let me know if you have any bugs problems or ideas. We will review and apply as soon as possible.