How to install ARK for free?

Hello there, I'm curious about the process of installing ARK cryptocurrency for free. Could you please elaborate on the steps involved? Is there a specific platform or software that I need to download? Are there any prerequisites or requirements that I need to fulfill before starting the installation process? Additionally, would I need to pay for any additional services or features once I've installed ARK? I'm looking for a clear and concise guide to help me navigate through the installation process without any hiccups. Thank you in advance for your assistance.