There are apps that open a windows that show another app page on Google play, and you can download it from there. Like this:

Can anyone please help me?

Thanks in advance

CodePudding user response：

Create a web link in your app like below:

"http://play.google.com/store/apps/details?id=<package_name>"

in your app. This schould open your app in Google Play, or if the user have no Google Play on his device it will open the link with the default browser.