For a three-year-old, ten to twenty minutes with one or two options and a timer they can watch is a realistic starting point. If you are setting up a shorter version for a younger child, our guide on
what age can toddlers use coloring apps has more on what a two-year-old can do alone. For a full afternoon at home, the setups in
how to keep toddlers busy at home sit next to this list, and our guide on
educational coloring apps for kids covers the screen side of the same choice.