How do I know in advance that I would want to query APP's keywords

[bau720123]

in your sample
the IOS's Facebook's keywords is => fb://
the Android's Facebook's keywords is => com.facebook.katana

and...how a about twitter or whatsapp or other app that I want to search
I want to ask, is there any way to first find out in advance the right keywords
TKS~

[ohh2ahh]

The keyword on android is always the package name of the app, which is in the URL when you're browsing Google Play on your computer. An example: the URL for the official twitter app is https://play.google.com/store/apps/details?id=com.twitter.android and therefore the package name must be com.twitter.android.

Unfortunately, on iOS it's not as simple as on Android. Because the developer can program his own URL scheme you have to google if there's a scheme. Luckily, this site provides a good list with many schemes.

Facebook

• Android: com.facebook.katana
• iOS: fb:// (and many more as fb://profile)

Twitter:

• Android: com.twitter.android
• iOS: twitter:// (more schemes)

WhatsApp:

• Android: com.whatsapp
• iOS: whatsapp:// (only since version 2.10.1, more information)

[bau720123]

Thank you again
Completely understand what you mean

[yreme]

this website could query the scheme of iphone
http://handleopenurl.com

[EGreg]

Your site link is broken. Is there any new site with a list of app schemes?

[JayanthkumarJK]

Links are broken. is there any latest site for the URL scheme

[HarshitChhipa]

A simple way to find the URI Scheme for any app is to try to use its bundle_name:// { which can be got by just searching the apps name in play store and see at the top in like you will be able to find the bundle name }
Alternative you can hit and try the to do this open safari and an in header type appName:// and if it asks the app name that your URI Scheme

Also, don't forget to do this.

Add URL Schemes to the Whitelist
Simply open your app's .plist (usually platforms/ios//-Info.plist) with an editor and add the following code with your needed Schemes.

LSApplicationQueriesSchemes

twitter
whatsapp

[HarshitChhipa]

Here are some examples if this helps.
https://www.amerhukic.com/finding-the-custom-url-scheme-of-an-ios-app
https://ios.gadgethacks.com/news/always-updated-list-ios-app-url-scheme-names-0184033/
https://www.appcoda.com/working-url-schemes-ios/