Mix flour, sugar, pumpkin spice, baking soda, baking powder and salt in a large mixing bowl. Set aside.
Beat eggs in separate bowl. Mix in pumpkin puree and oil.
Fold wet ingredients into dry ingredients until just combined. Do not overmix. Fold in chopped apple.
Line muffin pan with baking cups or spray each tin with cooking spray. Fill each muffin cup 3/4 full and bake 25-30 minutes, or until toothpick inserted in muffin comes out clean.