I generated a test application and published in the Play Store (Google).
But when looking for the app in Play Store, using a tablet, it does not appear! If you use the phone, the application appears available.
Is there a specific feature in Play Store or in the code that needs to be "activated" in applications to tablet?
What should be done to provide for tablet?
Check your android manifest.xml file in your build folder. Maybe you've specified only small screens.
You should add/have this in your manifest file:
<supports-screens
android:xlargeScreens="true"
android:largeScreens="true"
android:normalScreens="true"
android:smallScreens="true"
android:anyDensity="true"/>
If you don't have this you can add it by adding it to your manifest template in your project folder. If you have something like you should try to delete that.