Having trouble maintaining dependencies in your Objective-C application? Love the way Bundler deals with Ruby Gem dependencies? You may want to take a look at VendorKit:

VendorKit makes the process of using and managing libraries in iOS easy. VendorKit is modeled after Bundler. VendorKit streamlines the installation and update process for dependent libraries. It also tracks versions and manages dependencies between libraries.

Bundler has driven me to insanity more times than I care to admit, but VendorKit could be a real lifesaver.