Preheat air fryer to 350°F.
Peel, core and slice apples.
In a large bowl, combine sliced apples, brown sugar, white sugar, pumpkin pie spice, salt, lemon juice and melted butter. Mix well.
Divide apple mixture into 2 mini round baking dishes.
In large bowl, combine flour, oats, brown sugar, pecans (optional) and salt. Mix well.
Add melted butter. Hand mix until crumbs form.
Evenly sprinkle apple crisp crumble topping over apples in baking dishes.
Cover baking dishes with aluminum foil or baking dish lid.
Bake air fryer apple crisp in air fryer on 350°F for 11-13 minutes.
Uncover baking dish and cook on 350°F for an additional 5 minutes or until top is golden brown.
Serve warm topped with vanilla ice cream and caramel sauce (optional).