Yea, it is free. But, I think that there is an upgrade. Haven't used the upgrade so can't tell you much abuot that.
There's a basic version which is free, but you can get a premium version which will give you more benefits. Assuming you can use the new functions.
Yes Google Analytics is totally free for use, you only need one gmail account and can access the analytics.
Actually it's both! If you are a blogger or a small business owner its free version is sufficient but big firms for example ebay they need more advanced tools to rank good so google provides some additional features. for them it's with some price
Google Analytics is a tool offered by Google that generates detailed statistics about a website's traffic and traffic sources and many more things. This setup is absolutely FREE.
You can get a basic Analytics account that provides you with restricted data, or a premium account with provides additional information. Personally I find that the free account provides more than enough data anyway, so I haven't resorted to the premium account, yet.