Big Binary clock is a engaging innovation that does exactly what you'd expect a Binary Clock to do - it tells the time in Binary format.
Options:
-Round LED's
-Square LED's
-Geek mode
-Show time (on / off)
-Auto lock (on / off)
-time format (12 / 24 )
-All colors (swipe right, left for change colors)
-Brightness (swipe up, down for change brightness)
-Tap for hide help numbers
-new mode
Cassette Gold 
Tape 
Random Number Generator + 