This grid tool will help you keep proportion of drawing object. We can draw a layer of grid on top of your image. Hope it helps. Features: 1. Add grid on image. 2. There are 6 types of grids you can choose: - Rectangle (Set rows & cols) - Rectangle (Set row height & col width) - Square (Set rows only) - Square (Set cols only) - Square (Set row height only) - Square (Set col width only) 3. There are 6 paper sizes (A0, A1, A2, A3, A4, A5) with 2 unit types (cm, inch). 4. You can change line width (from 0.5 to 10). 5. You can change line color. 6. Save grid image to Camera Roll (Pro version only).