IMHO, this device and stirps are less trustworthy than my previous version and strips. I had this device for the last few weeks, and in my first box of strips, 13 of the glucose strips errored, were way off on the numbers, or would not draw in my blood sample at all as did 6 of the keystone strips. In several cases, there was extra coating in the tip of some of the strips, which appears to be an issue as well. At a dollar or so per stip, this will be a really expensive use case. The app is not displaying readings as expected. The strip packaging far less desirable than the previous method, but it is what it is. I guess I may need to return this unit for my old one.