We have 2 App, one for our Liberty watch and one for our Assure watch. You must download the App for your watch as the watch will only pair with the correct App. For the Liberty watch on your smartphone search and download the “WatchOvers Liberty” app and for our Assure watch search and download the “WatchOvers Assure” App. Or Click on this link to our Apps http://www.watchovers.com/apps/ and select the correct App.