The Theme for Vivo s1 / Vivo s1 pro is a beautiful application for Android smartphones. Download it now and get your phone's look changed for good. The new look will be yours for as long as you want. The app is easy to use and does not require you to know any coding language. You can select from a variety of wallpapers and icons to give your phone a new look. The best thing is that you will not have to pay for any of this. You can use the app for free. There are no hidden costs. You can also use it with no limits. You can use the app on your phone as you like.