I am trying to place an app download link on my website like I see on various websites. I need it to show up only when a relevant android device views the website. An example of this can be found on fiverr.com when viewing the website on an Android device.
Tried to look online on how to do it, but cannot seem to find the solution anywhere. I have looked an App indexing and have followed deep linking but this doesn't seem to do it.