Going to be releasing our first app soon – what don't I know?

We're releasing our first iOS/ Android app in around two weeks and I'm fretting about all the stuff we may not yet know.

Any suggestions on the kinds of things we need to bear in mind that are NOT obvious? Things like app store submission gotchas, failing to add analytics until it's too late or claiming that Kashmir definitively belongs to Pakistan when shipping in India (http://www.cnet.com/news/how-eight-pixels-cost-microsoft-millions/)

I'd love to hear any stories you may have.