Samsung Kies is a freeware software application used to communicate between Windows or Macintosh operating systems, and Samsung mobile phone and tablet computer devices, usually using a USB connection (though wireless LAN Kies connectivity is now possible using some devices). Samsung has released new software to replace Kies, named Samsung Smart Switch, which is mainly directed at migrating customers onto new Samsung devices. The name K.I.E.S. originated as an acronym for "Key Intuitive Easy System". After version 2.0, the name was shortened to "Kies".