Wave your iPhone/iPod through the air to create floating words! When light quickly shines on your retina the image remains briefly even after the light has passed. This effect allows you to swipe out a banner in the air using a strip of light. The human retina lets the image fade fast so it takes a lot of practice to see the image easily with the naked eye, but cameras record everything and give a great effect easily!

EPILEPSY WARNING: This app uses rapidly flashing lights. A very small portion of the population have a condition which may cause them to experience epileptic seizures when viewing certain kinds of flashing lights. If you or anyone in your family has experienced symptoms linked to an epileptic condition do not use this app.

Tips:
-Turn up the brightness on your iPhone/iPod and dim the lights in the room.
-Practice a few waves in front of a mirror.
-To take photos of the effect, set the camera to take a long exposure and use the "constant" option in the app. If the exposure can't be manually set on your camera, darken the area to get the camera to take a long picture.
-Automatic mode uses the accelerometer to position the text as you move the screen back and forth. Constant mode loops the text constantly, which is helpful for taking pictures.