Android paid app FLOSS?

hi /prog/
I'm planning dev apps for android market. I'm a FLOSS soft. user/hobbyist developer, in this case I want to make some $ (I can't eat freedom philosophy), my dilemma is if I want to earn some money I have not to release these apps as FLOSS, because I give up many of my rights, I only can earn money with distribution (as many of the future buyers of the app!!!).
In this case FLOSS doesn't works?
The only way is not to open source, proprietary software with EULA?

OP, Protip: You can still have the app be open source and sell it. Even with the GPL, you are only required to provide the source when you distribute it, which means you only need to provide it to the people who buy your app.