Over the past few days, I've noticed that some folk are having difficulty in finding a specific app/apps for their Samsung Watch, so let me explain the process:
On your Samsung phone, open the GALAXY WEARABLE app then, at the bottom of the window, you should see DISCOVER. This should display a window with FEATURED WATCH APPS (if you're lucky, the app you are looking for is displayed there). If you cannot find the specific app you're after, click on VIEW MORE. This will take you to the Galaxy Store, WATCH section. Click on the MAGNIFYING GLASS icon (top, right), then type in the name of the app you are searching for. Simply download your app, and when it is downloaded, your phone will automatically pair it with your phone.