I initially got excited about this (and know people who would really love this to exist), but after a bit of digging, I am convinced that this is likely a scam. This report explains why it is: https://whitediamondresearch.com/research/know-labs-is-an-ob....
You could also look at the stock economics to see that this company has not behaved like one with a bright future.
Yeah, the stock price made me suspicious but I figured that it might be due to the not-so-great accuracy plus a lack of moat - even if it worked, you'd see a cheap copy on AliExpress in 2 weeks. I didn't see the report before though, so yeah, I'd agree it smells like scam. Especially when you see the CEO dabbles in NFTs
You could also look at the stock economics to see that this company has not behaved like one with a bright future.