TouchWiz is Samsung Electronic's user interface for certain tablets and smartphones. It is preinstalled and enables users to customize their home screen and arrange applications for convenient use.
TouchWiz is sometimes incorrectly called an operating system, but it is actually a front-end, full-touch user interface. External parties are not able to license TouchWiz. TouchWiz on Android devices comes with preloaded apps made by Samsung. TouchWiz was introduced by the Samsung Galaxy S in 2010. The “Lite” version soon followed the same year in the Samsung Galaxy Proclaim. The second version of TouchWiz, named TouchWiz 4.0, was introduced by the Samsung Galaxy S II in 2011.