There are a two major reasons why your users may not see your apps on the Google Play Store.

  1. The user is within a different country setting than the one the app has been published on. For regulatory and compliance reasons, apps are published within the country settings in which they are licensed. Users who have their Google Play account setting tied to a different country may not see these apps

  2. The user's phone does not meet the minimum requirements of the app, such as to be at least Android 8.0 Oreo.