Here's a link to the 'purchasing music' FAQ on Tidal's site:
https://support.tidal.com/hc/en-us/articles/115003672089-Purchasing-Music
It looks like you can indeed buy tracks or albums if you'd like, but that's not really what their service is geared towards, it's primarily a streaming service.
The 'all sales final, one time download link' part isn't as friendly as iTunes where you can always re-download your purchases even if you somehow manage to delete them, and Apple does allow CD-quality lossless purchases as well.
https://support.tidal.com/hc/en-us/articles/115003672089-Purchasing-Music
It looks like you can indeed buy tracks or albums if you'd like, but that's not really what their service is geared towards, it's primarily a streaming service.
The 'all sales final, one time download link' part isn't as friendly as iTunes where you can always re-download your purchases even if you somehow manage to delete them, and Apple does allow CD-quality lossless purchases as well.