For Android easy way is mConnect or Bubbleupnp to access Tidal else you may download Tidal apk to install native Tidal app . For iOS, you may install native Tidal or third party apps like mConnect, Amarra etc media player. For native app you need to change app store location to US else need to create new Apple ID with US location. Same way you can install Tidal Desktop app for Windows platform. You may also access Tidal through AVR/Streamer built-in app like HEOS, Music cast, DTS Play-fi . If you have external DAC or amplifier with USB input then you may download and install Android app, USB Audio Player Pro and can access Tidal through it.
Hope you may get enough solutions to access Tidal....