Detect from browser if a specific application is installed in Android

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There is a way to achieve this.

You cannot detect if a particular application is installed, for security and privacy reasons. But you can do a trick to open the app if it’s installed or open its Google Play page if it isn’t.

To do that, you must create an intent-filter on your app’s main activity, to open it when a given URL is called. Like this:

    <activity android:name=".MainActivity >
        <intent-filter>
            <data
                android:host="www.myurl.com"
                android:pathPrefix="/openmyapp"
                android:scheme="http" >
            </data>

            <action android:name="android.intent.action.VIEW" />

            <category android:name="android.intent.category.DEFAULT" />
            <category android:name="android.intent.category.BROWSABLE" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

Explaining: when the user navigates to http://www.myurl.com/openmyapp, if the app is installed, an intent will be created and the Activity will be shown.

But what if the user doesn’t have the app installed? Then you need to create a redirect page on your http://www.myurl.com/openmyapp/index.html. When the user reaches this address, your server must redirect to market://details?id=com.your.app.package.

This way, when no Intent is created after the user navigates to http://www.myurl.com/openmyapp, the webserver will call another URL. That URL, in turn, will open Google Play on the device, directly on the app’s page.

Hope it helps.

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