I’ve had a a quick look online and couldn’t find anything useful about it, my advise is not to shell out any money on it.
I prefer the tried and trusted methods, cutting down on carbohydrates, self testing to see how the various carbohydrates affect us as we are all different in this respect, exercise if able and medications if needed.
Why not give us a try, tell us about your diabetes, any problems you’re having with it and ask any questions you have about T2 . We live with diabetes daily and follow a variety of regimes most of which reduce carbohydrate intake, we’ll tell you what things Have worked for us.