Backing up an old game to a new Iphone
Hello, can anyone help me with figuring out the best way to back up an old game from a 5s phone into my new one? The app for it is no longer in the Itunes store, meaning that backing it up is my only option if I ever wanna play it again. I have icloud all set up for for both my phones, but I still don't see it anywhere on the new phone. If anyone has ideas, please let me know.
iPhone 5s, iOS 12