i wrote small .net app to detect mobile users,
if the mobile browsers is Android then i show button to go to google play to download our App.
as well as if user is iphone then i show button to go App store with link of our app.
Everything work great. but the problem is i dont want to bother users to show that button on the page to download the app if they downloaded the app already. How do i know if users already downloaded the app ?
Any Help ?