'master' quality with Airplay and Tidal connect gives 'hifi'?

Playing around with my new Atom HE, i noticed that the quality indication made bij de Tidal App from my iOS device is different when playing ‘M’ stuff from Tidal. Like stated in my topic: with Tidal Connect i get Hifi and with Airplay it says ‘Master’ quality. Normally this means MQA also somewhere in the equation.
More interesting, the sound with ‘master’ quality / the airplay stream seems a bit more clear and with detail.

Any1 noticing something along the same line?