Paid apps

elmit2015

I don't know where to ask, maybe somebody can guide me to the right direction.

We are thinking on an income with the apps.

First what was came up is to sell the apps. Google gets 30%
Is there another way?

Second way would be to buy within apps. Here it gets for me confusing, ... How does it work? What does Google get? Do I  need to use Google at all?

Third way would be to let users subscribe within apps. How does it work? What does Google get? Do I  need to use Google at all?

mobilegameplay

First way, yes Google get some of your earnings. Another way? I would suggest another Android app market. Like Amazon. Though, I don't really recommend that because it's not so popular and you won't get more money after all.

Second way is (maby I'm wrong) not possible with Andromo, same as the third way. 

It's pretty simple, create a paid app or a free app with ads.