It's non-free (both beer and speech), and it's not available for Linux. To be fair, they do mention photorec on their homepage and they provide a free test of their own solution.
Hi there, thank you for your question! The trial version of Recoverit only supports scanning and previewing files. If you need to download files, you need to purchase the full product. At the same time, Recoverit provides a free version, which supports free download of 100M data.