WAVES wallet for iOS

[CryptoBagHolder]

I did a backup of my WAVES wallet for iOS and all it gave me was a Seed(consists of 15 random words).  Is the Seed also the private key?  If not where can I see my private key?  And also I noticed my WAVES address is the same as my bitcoin address within the app.  Is this a glitch? I'm paranoid to send bitcoin to an address that's the exact same as WAVES ADDRESS!!  Maybe this is a glitch in the program?  The QR code changes when I swipe through the types of coins but the address underneath doesn't change?? What's going on here?