As mentioned,
I have 3 developers who are currently working on APP for me.. I want to ensure progress is being made, and looking to sync their coding to my computer to ensure all codes are captured and on my computer as well... how can this be done... please help.
This kind of thing is accomplished using a technique known as source control management (SCM). OS X Server offers SCM server functionality (specifically Git), so you will be able to set it up on a Mac you control and host your code from there. Your contractors will be able to check out code from it and commit code to it, and you'll be able to see exactly what's going on.
Create a repository via Xcode that you can all access. See Xcode help on: source control
I didn't think about this earlier, but it's relevant to the discussion: Are those three developers working in-house or are they in other places? If you need a long-distance solution, I think you have to use some kind of server system. If you're all on a local area network, you should probably be able to get by just fine with ordinary file sharing.
And thanks KMT, I had forgotten to describe the last step of the process.
