Is PressReader a free app?

Hello there, I'm curious about PressReader, this app that seems to offer a vast array of news and magazine content. I'm wondering, is PressReader a free app to use, or do users have to pay for access to its content? It would be great if you could clarify this for me, as I'm considering downloading it but want to make sure I understand the cost structure beforehand. Thank you in advance for your help!