[AC Question]

Hi - Please forgive me if this question has been addressed elsewhere. I searched the site but couldn't find anything on this issue. I recently upgraded from the Galaxy S4 to the Galaxy S6 Edge. In my old phone, when I clicked on link for post in Instagram for example, the link would open in the Instagram app or I'd be asked when I app/browser I wanted to use to open the link. In my current phone, this no longer happens. The link only opens in the browser with a message saying get the app from the Play Store even I have the app on my phone. Does anyone know why this would happen in the Galaxy S6? More importantly, does anyone know if there is a way to get links to open in the app I have installed instead of the browser?