Peel and slice apples into fry-shaped sticks.
Mix flour, cinnamon, and sugar in a shallow bowl.
Beat the eggs in another bowl.
Add breadcrumbs to a third bowl.
Dip apple sticks into flour mixture, then eggs, then breadcrumbs, pressing lightly so they stick.
Place coated apple sticks into the air fryer basket in a single layer.
Spray lightly with cooking spray.
Air fry at 375°F for 8 to 10 minutes until golden and crisp.
Let cool slightly before serving. Best enjoyed warm.