cannot open instagram , youtube , twitter in ios

[mohadel92]

hi
i tried to open instagram,youtube,twitter
via "instagram://" and "instagram-stories://"

see :https://pureoxygenlabs.com/10-app-url-schemes-for-marketers/
and i failed the only working solution is
'whatsapp://'

any help

flutter version : Flutter 1.22.3 • channel stable
phone : iphone 5s running ios 12.5.1
`[✓] Flutter (Channel stable, 1.22.3, on Mac OS X 10.14.6 18G7016, locale en-EG)

[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
[✓] Xcode - develop for iOS and macOS (Xcode 11.3.1)
[✓] Android Studio (version 3.6)
[✓] VS Code (version 1.52.1)
[✓] Connected device (1 available)

• No issues found!`
any help with ios