Currently, Tidal is the only major music streaming service to offer an optional "lossless" audio tier, although other, lesser known lossless services do exist.
Anyone get this invitation for Spotify Hi-Fi? Looks awesome! pic.twitter.com/2aeYXMIHJD— Cody Kloepfer (@Semantics) March 1, 2017
Tidal says tracks heard through its "CD quality" lossless service aren't compressed, so users are said to hear the music the way the artists intended – though whether one can tell the difference between compressed and uncompressed tracks can depend on the listener. What Spotify defines as lossless remains to be seen.
Spotify began testing the service with a small group of users on Tuesday, according to reports, offering the tier for $5 to $10 above the $10 per month price of a standard Spotify subscription.
However, users who received the invitation to sign up for the Hi-Fi service either got an error message or were told the service was unavailable in their area at the time.
A Tidal HiFi subscription costs $19.99. Apple Music streams at a bitrate of 256Kbps, while Spotify's current Premium tier streams at a maximum 320Kbps.