If you liked Hiby Player that much better than Mango player, you should also try
Neutron Music Player?! With its 64-bit processing, crosstalk adjustment, bit-perfect playback, dither + sound shaping, upsampling (to 526), PCM to DSD (up to 526), native DSD playback (rather than converting to PCM), built in Auto-EQ (called Frequency Response Correction in the app), PEQ (up to 60 band), EQ (or a mixture of both), Auto Gain protection, Replay Gain, Compressor, Surround Sound/Stereo Effect, fade-out, speed modulation (tempo change), ability to change order of chain effects, etc... It is known for being the industry leader in DSP. I love the Hiby Music Player, and also UAPP too, but Neutron has been my local file go-to for some time; though it can also play from NAS, SMB, FTP.
To my ears it just sounds better than all of the other big boys. But they all have their advantages over the others that set them apart. Hiby's is that it can be remotely controlled from another device. UAPP's is that it can interface with Tidal, and Qobuz, and unfold MQA. All of these are bit-perfect though so there is that...
If you ever use BT, and especially if it has the LDHC codec, you might consider trying the Fiio Music app also. AFAIK it is the only one that has that codec built into it, (besides the crappy but usable Hifiman Music app). Also it is bit-perfect too!
Anyhow, I thought I would put my $.02 out there. If you are happy with the Hiby app, congratz to you.... and your ears!
This may also not apply to you, but Hiby support is pretty lacking compared to iBasso's IMHO. If you never have issues, it might not matter to you though. They both make great devices.