I had a chat with these guys at PDC2015. Their product is very similar to the Dario (on which I wrote a review
here)
They use the same manufacturer of test strips (and I'd guess, the phone plug in) as Dario and SD Codefree, which is South Korean. The software does very similar things to Dario as well. Both seem to have grown up independently. 2in1 is Serbian while Dario is from Israel.
The one comment I'd make is that the companies recommend not using the strips after they've been unsealed for a month. I'd have to confirm this is the best approach to take. I got crazy results on strips that had been open for three months, and even on ones that haven't been used for two months I get a 50% error.