"GlucoPulse" - Anyone used one? Opinion please?

Hi
I keep seeing adverts (mainly on Facebook) for no-prick monitors. My friend is very tempted, as being Pre-diabetic (family history +++) and would like one - if they work as suggested.

GlucoPulse is one, in UK and looks very promising but I'm sceptical regarding reliable results and whether a scam. I don't, personally, put any value on their 'reviews' as I can't be sure they're genuine, of course.

Hence, asking here Hopefully, someone can enlighten me ... ??? Many thanks

Link to advert - https://www.nivorae.com/ukgplse/sls

Thanks very much for your responses.

That's really interesting as there seem to be several different 'trade' names for similar devices, all saying the same thing and definitely claiming to read blood sugar levels!!!

As we know, "if it sounds too good to be true ..." I'm pleased my instincts are still working well LOL

Thanks again