I have just been advised by support that my Galaxy S7 is no longer supported. This is my new phone so looks like my Airport City game is over. Why is it still supported on my old broken Samsung Galaxy S5 but not the newer Samsung Galaxy S7
Seems unlikely, the phone itself is irrelevant rather the android version is the deciding factor.
From what I know all s7 came with android 6.xx(something) and all major carriers now have the
s7 on android version 7. The minimum version needed is 4.0.3 so your phone should work fine.
My wife has an s7 I could check on it but believe it will work with no problems.
I am on Android 7.0 I believe it is the carrier.