
Tidal is the "OG" lossless streaming service, but with more competition these days it has been forced to adapt and now offers multiple subscription tiers - it even offers a free tier, although it's an ad-supported service that doesn't get you lossless support (tracks max out at 160 kbps). Max Audio Quality: 9,216 kbp/s (with HiFi Plus subscription).Also, if you want to listen to "Hi-Res Lossless" tracks, it requires an external DAC than can support 24-bit/192 kHz.

A standard Bluetooth connection doesn't support lossless quality listening. In order to listen to them you have to have a wired connection (for headphones or speakers) or be streaming over Wi-Fi. There are some caveats to listening to lossless audio on Apple Music, however. Here, you can set default qualities for different connection types, including "Lossless," which will give you music ranging from 16-bit/44.1 kHz (CD quality) to 24-bit/48 kHz, or "Hi-Res Lossless," for quality up to 24-bit/192 kHz. However, you have to enable lossless quality audio via the Settings app if you want to start listening to them. Of course, Apple Music now offers lossless audio to its subscribers at the same price of $10.99 per month.

(To change this, open the Settings app > Music > Mobile Data > Streaming > High-Quality Streaming.) When streaming over cellular, however, the audio quality goes down. Apple also defaults to audio of the highest quality, assuming your device is connected to Wi-Fi.
