Prepare an ice water bath. Arrange the eggs in a single layer in a steamer basket set over boiling water. Cover the steamer with a tight-fitting lid and steam for 10 minutes. Turn off the heat and let the eggs sit, covered, for 5 minutes more.
Plunge the eggs into the ice bath. Working with one egg at a time, crack the shell by rolling it on a flat surface. Under a stream of cold running water, peel the shell.
Let the eggs come to room temperature. Meanwhile, in a dry 8-inch skillet, toast the curry powder over medium heat, stirring, until fragrant, about 1 minute; cool.
Slice the eggs in half lengthwise. Remove the yolks, transfer them to a small bowl, and mash them with the back of a spoon.
Add the curry powder, mayonnaise, honey, hot sauce to taste and 1/2 tsp. salt; continue to mash until smooth. Stir in the apple. Pipe or spoon equal amounts of the mixture into the hollows of the egg whites. When ready to serve, sprinkle with a little paprika if you wish.
You can prepare and refrigerate the deviled eggs up to a couple of hours ahead.