Methods for updating applications

A method includes receiving, from a remote computing device, an update request, the update request including a first signature corresponding to a client-side application package that is stored at the remote computing device. The method also includes identifying a first server-side application package using the first signature. The method also includes generating a differential update package using the first server-side application package and a second server-side application package as inputs, wherein the differential update package, when applied to the client side application package, is operable to modify to the client-side application package such that it is functionally equivalent to the second server-side application package.