Indexhibit Support

I'm Asian junior designers.
I want to download indexhibit.
Do I need to pay?

Can not be accurately translated.
Sorry, Answer please.

I've found this sentence.
Sorry and Thank you, look at my question.
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Indexhibit CMS 2

In order to access the Indexhibit download you will need to register. Once registered you can pay via Paypal and access a dowload link for the CMS. It is a one time fee valid for the duration of that version series of Indexhibit.

Individual
25 Euros *
Student, independent, professional

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I would like to ask one more.
If the version is changed, the cost of one more pay?