This App is essentially targeted at phones without the flash light. Once activated, the phone continues to display the signal in loop without going in standby mode.
The user needs to exit the app for stopping the signal.

Preserves battery as no flash light is used.

SOS stands for "Save Our Souls". The Morse code symbol . . . _ _ _ . . . is a universally accepted signal for conveying a state of distress.
This lightweight app is meant for this purpose only.

Any issues/ modifications/ suggestions can be conveyed to the developer.