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The STEAM app does not have URL_scheme， Apple's proprietary API checks don't work either I am looking forward to your reply ，thank you

ShowLee
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    If it doesn't have a URL scheme then you can't know if is installed. Even if it did have a URL scheme, you can't really know if is installed. All you know is that there is some app that declares that URL scheme – Paulw11 Jun 27 '22 at 05:27
  • That said, I can't tell if the Steam app is installed on the phone? Do you have any way to detect if Steam App is installed on my phone？Thank you for your reply. – ShowLee Jun 27 '22 at 05:34
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    As I said, no. Due to sandboxing an app can't really know about what other apps are on the phone. You can use `canOpenUrl` to see if there is an app registered for a particular urlscheme. That's it – Paulw11 Jun 27 '22 at 05:36
  • You might like to check this -> https://stackoverflow.com/questions/7169381/how-can-i-determine-if-a-user-has-an-ios-app-installed – Rattanakoudom Sambath Jun 29 '22 at 08:32

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