App based controlability.
On color changing signs, you will have the ability to cycle through your color options, as well as more customisation on the actual color appearance. You can also chose from lots of different preset modes, as well as the ability to create your own modes.
You will also be able to set the app so that the sign dances/pulses to the sound of music playing in the room.
On Single color signs, you will have the ability to raise and lower the brilliance level as well as control the preset modes as above.