Many iOS applications have a URL Schema that can be used to launch from a webpage. In UW create a standard link object and put the appropriate url in the Standard URL box.
For example to launch Google Maps put : comgooglemaps:// in the Standard URL Box. Now when someone clicks on that tile in UW, it will launch the iOS application if installed.
This
site has a list of many of the popular application url schemas.
Note : You must be using Safari or Chrome on the iOS device. This does not currently work if you are using WorkSpace application, we are working on a solution.