Would keep this and Tap Color Lite but both color in a space I haven't even touched. I can tap my stylus on an empty or already colored space NEAR the grey spaces and it will still fill in the intended grey space without actually touching any grey spots. I want to need to tap the actual space and that be the only way it will fill in. I've tried this app a couple of different times and still no change. Happy Color is still the one and only color by number app that is worth it and works perfectly.