Custom watch face app Facer now supports a third platform - Samsung’s Tizen. This allows Gear S3 users to tap into the 15,000 watch faces that close to one million Android Wear and Apple Watch users have been enjoying.
The app supports Gear’s always-on feature so a full-color, fully animated watch face will be constantly visible, bringing smartwatches one step closer to classic watches.
Since many view their watches (smart or otherwise) as a fashion statement, the new version of the app allows you to color coordinate the watch face with your outfit with just a single snap with the camera.
The Facer Creator (what you use to design a new watch face) got a major upgrade with new documentation and tutorials to get you started, recipes for common watch complications and community features for further support.
You need select the Facer logo on your watch as the watch face in order to sync.
Try to download the Facer companion app. It did the same thing to me too. but after several repeated downloads it installed. The companion app is a small file should not more than a few seconds