Can I download unity for my IPad for free?

Can I download unity 3.3 for free on my IPad? Help

You cannot use Unity on your iPad if that's what you mean.

BUT, Unity has a Free version that you can use on any destop or laptop computer.

No. You can write iPad apps using Unity (not free, $400 to start in order to do iOS publishing), but Unity will not run on an iPad.