Does iTunes Connect has an API? How do some applications download financial and sale reports to computer? Are there some C/Objective-C API wrappers?
Thanks in advance.
For everything non-sales related, you might want to check out the unoffical documentation of the iTunes Connect JSON API: https://github.com/fastlane/itc-api-docs
Update: There is now a Ruby implementation of both the iTunes Connect API and the Apple Developer API available: https://github.com/fastlane/fastlane/tree/master/spaceship