Mac users interested in Osx signer for os 10.6.8 generally download:
This is an app for OS X that can (re)sign apps and bundle them into .ipa files that are ready to be installed on an iOS device. This app requires Xcode to be installed, it has only been successfully tested on OS X 10.11 at this time.
Supported input types are: ipa, deb, app, xcarchive.