Watch IV is a personalization app developed by Iv Watchface, available on Android platform. This app offers a customizable watch face for Wear OS, making it possible to personalize your watch face according to your preferences.

The app has a range of features to choose from, including 5 custom background colors, 5 custom hand sec colors, and 5 custom themes colors. Additionally, you can choose from 3 custom add-ons to enhance the look and feel of the watch face. The app also supports AOD, making it possible to view the time at a glance, without having to wake up the watch.

With Watch IV, you can customize your watch face to match your style and preferences, making it a great choice for anyone who wants to add a personal touch to their Wear OS watch.