Slice camera lets you create photos by combining one row of pixels at a time, building then up to create images with unique properties. Experiment with different techniques and scenarios to create different effects.
Images created with slice camera blend the moments together, as each slice is captured one after the other. With a little bit of practice and experimentation there are all kinds of interesting images that can be pulled out of a moment in time.
In many cases it helps to use a tripod or set your phone down somewhere stable to capture images, this way the scan line will be stable for the entire exposure of the image.