Designing Apps for Small Hands and Early Readers

Children are not small adults. Interfaces that work for them account for developing motor skills, early reading and a very different idea of what a button looks like.

Big, forgiving targets

Fitts's law describes how the time to reach a target depends on its distance and size. For children, whose fine motor control is still developing, it argues for large touch targets with generous spacing, placed away from the edges where hands rest.

Do not rely on reading

• Use clear icons and spoken instructions alongside any text.
• Let children replay an instruction as often as they like.
• Keep the number of choices on a screen small.

Forgive mistakes

Accidental taps, swipes and repeated presses are normal. Design so that a mistake is easy to undo and never leads somewhere a child cannot get back from.

Keep grown-up things behind a gate

Settings, purchases, links and sharing belong behind a parent gate that a young child cannot pass by chance. The aim is not to trick the child but to keep adult decisions with adults.

Avoid manipulative design

A dark pattern is an interface designed to push users into choices they would not otherwise make. With children, common examples are countdowns that pressure a purchase and characters who look sad when the child stops playing. Leave them out.

Let sessions end

Natural stopping points, such as the end of a story or a puzzle set, respect the family's own limits. See making a family screen-time plan.

Revised 2026-10-22