This is fun of the light candle on your device, the app has got some features where by to turn on the candle one has to blow air through the phone microphone. This a special opportunity where on can use air to start candle.
To keep the working one has to keep the phone screen active otherwise the candle switches off immediately the phone screen is not active.
The app also doesnt have any software or programme you think can be harmful to your device so please feel to use it at anytime,