Cool Themes HD for iPhone 6 & 6 Plus is a lifestyle app developed by Xiaorong Yang. This free app offers a wide variety of original designed theme backgrounds that are updated daily. With this app, you can customize your home screen and lock screen with beautifully designed themes in pairs.

The app features tons of categories including Calendar, Holidays, Bling, Romantic, Texture, Cool, and many more. It also offers a fully new iOS style interface, giving you a seamless user experience.

One of the great features of Cool Themes HD is the ability to save unlimited backgrounds for your iPhone. You can easily share your favorite themes with your friends on Facebook, Twitter, and via email.

Using the theme backgrounds is simple. Just browse for your desired theme, save it to your device's Photos, and then set it as your lock screen, home screen, or both.

Cool Themes HD aims to provide users with the most beautiful and coolest theme backgrounds. If you love themes, then this app is a must-have for you!