best source revision control software on MacOS

On MacOS, I am coding in ObjectiveC and Java. I want to have a r开发者_如何学Cevision software runs locally on my machine, good GUI, excellent tooling in terms of easy check in, check out, diff, history etc. Free would be a bonus too! :) What's the best/popular ones out there that can serve the basic needs above? Thanks!

Popular DVCSes, which fit your locally-running requirement, are Git, Bazaar, Mercurial (Hg), and others that people will be happy to point out, I'm sure.

Git seems to have the best-looking gui options, some which are reviewed here: http://fuelyourcoding.com/rise-of-the-mac-git-guis/

Try Git with GitX.

If you want to use Subversion I think that Cornerstone is unbeatable in OSX (is not free but is worth paying for it)