Not to sure by what you mean "where is the addrress" could you explain abit more?
I don't use iOS but I guess the OP is trying to backup/export the private keys used by the wallet. This can be useful when the phone is lost or the Apps is no longer supported.
Your recovery phrase is where all your private keys come from. It is industry standard BIP39 with the default BIP32 wallet layout.
Breadwallet also connects directly to the bitcoin network. We have no servers, so no "support" is needed for the app to continue working.