This article is a couple of years old but it appears LS is Load Store: http://blog.geni.us/2013/12/06/parameter-cheat-sheet-for-itunes-and-app-store-links/ http

This article is a couple of years old but it appears LS is Load Store: http://blog.geni.us/2013/12/06/parameter-cheat-sheet-for-itunes-and-app-store-links/ http://blog.geni.us/2013/12/06/parameter-cheat-sheet-for-itu...