How to achieve realistic shading in coloring apps?

Achieving realistic shading in coloring apps involves several techniques. Use a darker shade of your base color for shadows and a lighter shade for highlights. Many apps offer pressure sensitivity (especially when using a stylus), allowing you to create varying intensities of color. Utilize blending tools to soften the transitions between shades. Experiment with layering colors to create depth. Some apps also offer specific shading tools or brushes. Remember to consider your light source and apply shading consistently across your image. Practice and patience are key to mastering digital shading techniques.