Unrini is a free icon pack for Android devices developed by A1 Design. It allows users to personalize their device's home screen with over 1,350 flat icons in Full HD 192 x 192px resolution. This icon pack is compatible with multiple launchers, including Apex, ADW, Go, TSF, Holo, Nova, and more.

Unrini also offers monthly updates and a help and FAQ section for users. To use this icon pack, users need to download their preferred launcher and set it as their default home. After that, they can apply Unrini to their launcher and change the launcher settings, such as the number of dock icons, the portrait grid, and the icon size, among others.

It's important to note that some launchers do not support icon packs, such as Google Now Launcher, and GO Launcher doesn't support Icon Masking and Icon Upon. Additionally, LG HOME does not support icon packs on some devices after its latest update. If users encounter any issues, they can contact the developer for assistance.

Overall, Unrini - Icon Pack is an excellent option for users who want to personalize their Android device with a wide range of icons.