both the Hadoscan and SCIO have explanations on how they work that are so vaguely worded and full of nonsense phrases like "cellular quantum vibrations" that's really impossible to tell exactly what they are doing or how they work.
I suspect the only way to know if any of those machines work is to try them yourself.
There are two people on eBay offering remote treatments with the SCIO for something like $75. Might be interesting to try it
Not sure if the Hadoscan has remote treatment capabilities