You need to install the official application of Samsung ChatON. Utility api having a method to know, Is ChatON is install or not. The Utility API Class provides typical tools that are useful for application development by using Client APIs.
UtilityAPI.isChatONInstalled(Context context)
Utility api also provide the method by which you can get the download link of ChatON application.
UtilityAPI.openChatONDownloadPage(Context context)
for more infromation, please see this link