Is web player free?

I’m a bit confused about the Kaltura platform functionality.
I just need a web player to replace the HTML5 video. I will use it in the React JS application, on smart TVs to play HLS video and HLS live streams. Should I pay for this?
As far as I understand, the Kaltura player is based on Playkit JS. Can I use just Playkit or do I need something else?
Thank you!