See: https://developer.apple.com/library/archive/documentation/AppleApplications/Reference/SafariWebContent/PromotingAppswithAppBanners/PromotingAppswithAppBanners.html Meta-Tag need to be added to web app when app is publicly available in Apple app store.
See:
https://developer.apple.com/library/archive/documentation/AppleApplications/Reference/SafariWebContent/PromotingAppswithAppBanners/PromotingAppswithAppBanners.html
Meta-Tag need to be added to web app when app is publicly available in Apple app store.