Preheat the air fryer to 390°F for 3 minutes. Pat the corn dry with paper towels so the bacon adheres well.
Whisk the melted butter, maple syrup, BBQ seasoning, smoked paprika, and apple cider vinegar in a small bowl. Set aside 1 tablespoon of this glaze for finishing.
Lay the bacon strips on a board and lightly brush them (not the corn) with some of the remaining glaze. Wrap each ear with 2 strips, slightly overlapping, ending with the seam on the underside. Tuck the ends under or secure with a short toothpick. Chill the wrapped corn in the freezer for 5 minutes to help set the wrap.
Arrange the corn in the basket with space between each ear. Air fry at 390°F for 10 minutes. Rotate each ear a quarter turn with tongs, brush lightly with more glaze, then increase the temperature to 400°F and cook 6–8 minutes more, until the bacon is deeply golden and crisp. Tip: If the bacon darkens too fast, drop the heat to 370°F for the remaining time.
Rest for 2 minutes so the bacon firms up. Brush with the reserved glaze and serve hot.