The Meridian explorer2 dac is a great bargain. I *think* that will hold true even via the iPhone iOS Tidal app, but you'll need to double check that. If you use Meridian's explorer2 dac, you will get both, the first and second unfolding of the MQA file. iOS first unfolding will eventually come to Tidal's iOS app, but nobody seems to know when exactly. Tidal's macOS *desktop* app **will** decode the MQA files with what's referred to as the 'first unfolding' of MQA. You'll only hear 'redbook' 16/44 cd sound quality. Currently, Tidal's iOS iPhone app will not decode MQA files at all.