Dolphin can't be installed, but why?

[goSciu]

So hey,
As it's said in title, I can't install Dolphin, but I don't know why.
I'm pretty sure I meet all requirements (my phone is LG K10 2017 DS, Android 7.0 x64, OpenGL ES 3.20), but every time I try to install .apk it ends up with information "App not installed. This app isn't compatible with your phone."
Why does it happen and how can I fix it?

[JosJuice]

Are you sure that you have a 64-bit version of Android? Many phones only have a 32-bit userspace even though the CPU is 64-bit. This is the problem for most people who get that error message, and there is no practical way to fix it.

[goSciu]

Well, I checked it twice right now, and, yes, that's the problem. It's quite disappointing. I guess I'll stay with PC version then.
Anyways, thanks for your help

[degasus]

Even with 64 bit (not x64) support, playing dolphin would be no fun on this device. Its A53 cores are too slow to get a good performance, and the video drivers for the Mali GPU are terrible.

[Guilherme]

I'm almost sure this phone is not 64-bit, generally x64 Android run on 3GB+ phones, yours is 2GB, and hardly a low-end phone comes with x64 system, unless we're talking about chinese manufactures. As has been said here too, you'll have a disapointing performance with A53 if you can install.

[degasus]

64-bit, generally x64 Android

Please don't mix 64 bit with x64. x64 is Intel + AMD, aarch64 is ARM. Both are 64 bit.

[Guilherme]

Please don't mix 64 bit with x64. x64 is Intel + AMD, aarch64 is ARM. Both are 64 bit.

Sorry then, I thought x64 was software and 64 bit hardware.