What is the cost of a paying user in the app now?

Question

Marketing

Friends, tell me, what is the average cost of a paying user in a mobile application now?
Or sources where this information can be taken.
Google rummaged, did not find the answer. Only for attracted users. But the cost of the payer is of interest. For example, Google Play, sports category.

Answer 1

For a spherical application in vacuum, from 0 to a million.

Answer 2

So it can depend heavily on the conversion of a particular application and the numbers may differ by orders of magnitude.