IIRC even activating the physical card requires an app, which is of course only existing on iphone. Also, the user agreement specifies you need a device which is ApplePay compatible (i.e., iphone). Also, IIRC the card doesn't actually have a number anywhere, so if you ever need to enter it, you're out of luck. And to use the cashback funds, IIRC you need the app again.
The only fully-functional interface for viewing statements and scheduling payments is on iPhone. In fact I'm pretty sure you can't do either of those things at all in any other place than the iPhone Wallet app. Not even on a Mac or an iPad.
