I don't use any Apple gear, so sorry I'm struggling to find answers, as I'm not quite sure how to phrase my question.
My wife had a banking app on her phone, but our son managed to delete the icon from home screen (where all the app icons are). If she uses the search, it lists, and if we go to the app store, it gives the option to "Open" (and not "install"). So we assume it's still installed.
How do I add this back so she can access it without having to search or open the App Store?
Edit: To add, it's an iPhone 5