There is a top paid, and a top grossing, overall and by category, on both iTunes and the Play Store. I don't know what the metric for "top paid" is (though comp

There is a top paid, and a top grossing, overall and by category, on both iTunes and the Play Store. I don't know what the metric for "top paid" is (though comparing downloads/ratings and price/IAP, it, too, seems to be by gross and not counts, or some combination of the two), but top grossing would very much benefit from this scheme.