For efficient deployment of thin client applications to an end user, an apparatus for efficient deployment of thin client applications to an end user is disclosed. A method and computer program product also perform the functions of the apparatus. The apparatus, in one embodiment, includes a processor and a memory that stores code executable by the processor, wherein the code identifies, on a server, a first file package for a thin client application, the first file corresponding to a current version of the thin client application, receives identifying information for a second file package stored on a local device, compares the first file package to the second file package, and determines a minimum set of updates needed to transform the second file package into a copy of the first file package, in response to the first file package differing from the second file package.