I am looking forward that we'll do this project with quality of work. I am working in a well known VPN Provider company and have also developed mac apps for them. We have working with helper tools to get administrative rights for the use of application and did lot of RND during the period of working on mac apps.
I am waiting for your response, please provide some of the deep details what you want to build and the requirements for your app as well, I am always available for consultancy as well if anyone wants.