Is Hole.io free?

Excuse me, I was wondering if you could clarify something for me about Hole.io. I've heard a lot about this platform recently and I'm quite intrigued. However, I'm a bit confused about its pricing structure. Specifically, I'm wondering if Hole.io is available for free to use? Or are there any costs associated with accessing its services? I'd really appreciate it if you could shed some light on this matter for me. Thank you!