I have installed the Mach3 Control app on my Google Pixel 2 XL which is currently running Android 8.1. The problem is as I open the app it only loads a white blank screen and gradually after few second it crashes automatically. Any idea how do I get the app working normally?

I know that one day everything will be controlled by our phone (albeit bearing a different name) but until that day comes I will, and I urge others to, continue using a dedicated PC for controlling what could be an extremely powerful CNC machine / laser etc.

Tweakie.

Asking the person that wrote the app would be your best bet. I doubt you'll find anyone here that uses it.