If you use Lumin D1, you have three choices of Tidal interface:
1. Lumin native app + Lumin player: supports Tidal gapless playback and upconversion to DSD
2. Kazoo app + Lumin player: supports Tidal gapless playback
3. Tidal official app - AirPlay - any AirPlay device including Lumin player: gapless not supported (just like normal Tidal playback devices)