Re the above mentions of the G5, V30/V40 etc., I should post an update on my experiments with the LG V30 ThinQ, a new LG G7 One, and the Tidal, Qobuz, and UAPP apps.
@masterpfa I imported the G7 One from Canada via eBay.
The tl;dr summary: on the G7 One UAPP delivered perfect Hi-Res from Qobuz and blue dot MQA from Tidal via USB to my external DAC/amp. This works better than the V30.
However, I have been unable to play MQA through the internal quad DAC, even though it is otherwise the same as the V30.
In previous posts I was having trouble driving my Pro-Ject Pre Box S2 Digital (DAC and headphone amp) with the V30 ThinQ. The G7 One has no such problem. The Pre Box is not really a mobile DAC, and requires external power at least for the initial connection with either phone, so many of you may not care but the V30 problem may have something to do with specs I found saying
the V30 has "Power Delivery 2.0" USB, while the
G7 One has "USB On-The-Go".
The official Tidal and Qobuz apps sent USB output through the Android OS, where it got resampled to 48 kHz in all cases (MQA, Hi-Res, whatever, all 48 kHz as expected). But UAPP delivered perfect Hi-Res from Qobuz and blue dot MQA from Tidal. There were a few MQA dropouts, but we know this is still common and not UAPP's fault, and when that happened I just went back to Qobuz to enjoy more Hi-Res! On the other hand, Darko and other reviewers are apparently wrong about internal MQA support: unlike other LG models with the same internal quad DAC,
this one does not decode MQA. On the official LG web page for this phone, MQA is not mentioned. I tested MQA with downloaded 2L sample files and Tidal streams. No luck.
The V30/40 phones are definitely higher-end overall, but the G7 One with its pure Android One system is a better fit for me, and it contains the same internal Quad DAC that works for all purposes...except MQA decoding. The G7 One also includes a DTS:X 3D Surround option you can activate instead of the Hi-Fi Quad DAC control panel, plus an FM Radio app (if you're into that sort of thing) which is tightly tied into the system, locking out a third-party radio app I was using on the V30. But that's all internal. My main point here is, UAPP worked great!
[Edited with results of internal MQA playback tests.]