One of the better coloring apps! 1) Smooth & detailed zooming in/out & picture navigation. 2) Allows navigation without accidental coloring. 3) Doesn't allow wrong color placement. 4) TONS of really great picture choices! 5) Replays your coloring, in the order you colored it, & at a very nice speed. -Loving this one; VERY close to perfection! One addition I'd like, is allowing a long press of a cell to auto-select the color for it.