Playing arcade games via iPhone app

I love that I can play a few games on my iphone and appreciate the opportunity to earn tickets when I am out and about.  It sure keeps me amused while I am waiting to pick my son up from school.  Earning a few tickets here and there, add up quick.  I have the HSN app on my iphone and clicking on the arcade brings up spin to win.  I can’t access the games via the app.  I saved the email HSN sent with the announcement about the games being available for your mobile device.  I have to access the games using that email. I can play 4 games on my iphone but only using the email link for access.  Is it me doing something wrong?  I would think since some games are available for your mobile device they should come up on the HSN iphone app.  I am just wondering if there is a short cut that I am missing?  Again, I appreciate the opportunity to play on the go and hope they add additional games for mobile devices.