If not.. what?

if not then nobody should use it

Although perhaps I'm misunderstanding and the idea is that each wallet device requires a separate implementation and this is just Apple's version? I guess that makes sense. But if the product is "easily make passes for your business" and then they are Apple-locked, that is obnoxious and anti-consumer and people should refuse to use it.

	▲	apocalyptic0n3 2 hours ago \| parent \| next [-]
		Apple Passes are a feature built into Apple Wallet, which is iOS/watchOS/Safari-only. Google has their own version in Google Wallet that runs on Android (and only Android with Google Play Services if I recall correctly). Samsung has a version too and there are many others. I believe they all operate off .pkpass files. Apple Pass Designer is just a tool for customizing what the passes a business is giving to its iOS customers looks like. It's macOS-only (Apple barely supports anything not-Apple). I assume the customizations won't translate to other apps unless those apps add support, but the passes should still work.
	▲	wat10000 an hour ago \| parent \| prev [-]
		It’s made clear that this is specifically for Apple Wallet, not some sort of general solution.