really sorry to say this is worst producttotal i bought 2 kit and 1 i used immediately it has qr code correct in that test cardbut in another kit there is only half of the qr code so that their app doesnt scan it and money is wasted totally how to use the product in their app without qr codethey need to check these important things before packing totally worst experience check the image i attachedit has one half of some ones qr code and another half of my kit qr code