This is what's known as a sucker's game: At the end of the day you're playing on someone else's playground and they set the rules. In an ideal world you own your own playground, but if you can't afford one find one with more open policies.
If you want an example from the big boys take a look at Facebook: They couldn't offer a custom experience on iOS so they forked Android (Amazon did the same thing too, and so will Samsung before long).
If you want an example from the big boys take a look at Facebook: They couldn't offer a custom experience on iOS so they forked Android (Amazon did the same thing too, and so will Samsung before long).