distribute outside of google play? is there a service for this?

I have my apps translated in many languages already, but I need to publish them outside of GooglePlay.

All I would want to do is upload an apk, choose 3rd party stores I want submissions in, and let the service do the rest? anything like that out there?

There are such service in China, called KuChuan ?? - ???|APP??_APP??_APP??APP??????

is there any other services ??