Scenario

You just created a new app and uploaded ( apk) it to the Android Market (Google Play) with all screenshots, details etc. Generally it takes a couple of hours or more for it to be available on Google Play. But you want to know the URL of your app in Google Play website to check it out later.

The URL of you app would be as follows
 
https://play.google.com/store/apps/details?id=com.your.package.name

All you have to do is change the package name in the above URL to the package name corresponding to your app. The package name is defined in the AndroidManifest.xml of your app.

Example:

AndroidManifest.xml
<?xmlversion="1.0"encoding="utf-8"?>
<manifestxmlns:android="http://schemas.android.com/apk/res/android"
    package="com.livrona.apps.radio"
    android:versionCode="1"
    android:versionName="1.0"]]
?>

The URL would be:
https://play.google.com/store/apps/details?id=com.livrona.apps.radio<!>