The solution provided by WebGuy is perfect. There is also an alternative with Branch.
If you do not have a website, Branch offers a customizable Branch hosted page called Deepviews.
With Deepviews you can provide your users with an opportunity to enter their mobile number so that they can text themselves Branch links to download your App.
If you wish to enable a Deepview for Desktop users for a single Branch link, you can add the parameter $desktop_deepview to your links. The value of the parameter should be set to the Deepview key you can to redirect the user to.
If you wish to enable a Desktop Deepview for all Branch links, you can do so in your Branch Dashboard at Web to App> Deepview Previews> Desktop and enable the Deepview of your choice.
(PS: The only drawback is you will not be able to add any Javascript logic to your Deepviews.)
solved hosted landing page to download my app by platform/other