Use your smartphone flash light as a torch or a strobo.
You can set the strobo speed via the central knob.
You can use Torch & Strobe also to send SOS morse message.
Torch & Strobe also as colorful ambient light
Works also on Android 4.4 KitKat
1.4.1 Compatibility with Android 4.4 Kitkat
1.3.0 Set background from Menu - Settings
1.2.4 Shake to change ambient light; Auto hide controls on ambient light
1.2.3 Better Performance on License Control
1.2.2 LED Flash always on, also in standby
1.2.0 Switch to Colorful Ambient Light