Rush to download anonymity apps in China?

Not sure what started it, my app(s) sales shot up more than >999% in China after 17th August 2017.

One app that is being downloaded most is "Buzzie - Anonymous Phone Tags", an app that lets you receive calls via urls instead of phone numbers https://itunes.apple.com/us/app/buzzie-anonymous-phone-tags/id1084077675?mt=8.

Think of it as a URLs as "burner phone numbers".

Is there a rush for anonymity apps in China now?