I know that the App store links uses itms:// itms-apps:// and itms-appss:// scheme. But according to this WWDC Session we must define the external schemes in LSApplicationQueriesSchemes after iOS 9.0. So are these three schemes needed to be defined in LSApplicationQueriesSchemes while calling canOpenUrl on any of those or Is just for the apps installed on the device.
In my app I haven't defined the schemes inside LSApplicationQueriesSchemes but canOpenUrl still returns True and I can open the application link in app store.