Hi @Anonymous User
The Spotify App was previously available on the NowTV Apps Store a couple of years back, then it was removed from both NowTV and Roku devices.
The full blown Roku Players have now had the Spotify App reinstated the last time i checked.
I did ask NowTV Management at the time if they was also going to re introduce the Spotify App on the NowTV Apps Store inline with Roku and the reply was no plans of Spotify being added soon 😠.
Apologies. Brain fart.