The only masquerading is some basic OBD functions slapped onto an app that is entirely designed for the sole purpose of installing emissions evasion firmware. Most of the reviews brag about it, even.

And do you really think they're HQ'd in the caymans by coincidence? No. It's to avoid any repercussions.

You can get similar basic OBD functions from any of a dozen free apps on iOS or Android that do that all far better and for a few dollars.

FFS they even sell another app for editing (ie falsifying) electronic driver logs.