Also, if you are interested in use a subversion repository on a shared internet hosting (we use bluehost) we will explain you the way to set it up
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This way you can have a full control over the development (changes, different versions, etc.) of your applications
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A hosting with SSH support is required, also some adjustments are required to get WebSVN properly working. We needed some days to get it fully operative
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Of course, the web based repository is totally private, as a login and password is required to use it. The great advantage of a web based repository is that you can access to your full source code from anywhere
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Alternatively you can just install it on a private intranet.
Both SVN and WebSVN are totally free and open source.