HI,
I am facing such issue or URL scheme that open’s an app from device it is running on .So the app is opens in POS for android but not in POS for IOS.
Upon further checking ,I found that issue is in POS app for iOS its self that the URL scheme is either blocked or made not to work in WebView of POS app for iOS, i found this using the shopify store app for iOS which is working fine and URL is forwarded to the app. both of them are attached. i want it to work in POS app for iOS the functionally is build for that.