Is the Dora plugin free?

Hello there, I've been hearing a lot about the Dora plugin recently and I'm quite intrigued. My question is, is the Dora plugin available for free? I'm particularly interested in its features and capabilities, but I'm on a tight budget right now. So, if it's free, that would be fantastic. Could you please clarify the pricing model for the Dora plugin and whether or not it's accessible without any cost? Thanks in advance for your help!