hi, can you provide screenshots of what you are seeing? I'm really not sure what the issue is.
you should not need any third-party software to install the .apk.
this would be the correct way to install it... I do wish that error message was a little more descriptive. But I think I know what the issue might be.
I've just pushed a new .apk that should enable support for some additional CPU architectures. Please give it a try.
If it still doesn't work, this tool is recommended:
https://github.com/zacharee/InstallWithOptions
If you manage to install it with that, let me know what steps you took and I can diagnose this issue better. But see if you can install the new .apk by itself first.