tCheck

Data privacy is very important to me, and the data the app collects ( device information, location ) feels unnecessary and invasive. I do not understand the value in having an account or needing to send data to a server. The website claims the app can be used without an account or internet, but it wont let me proceed without enabling location services, which I will not do on principle. If these problems can be addressed, I will update this review accordingly.

This works fine for me, but I I'm giving it three stars because I think they could improve the product. This doesn't deserve a one star review as it appears to work as advertised. For anyone that is getting disappointed about the 15 mg limit, do some research and use math to get what you want. Most samples are going to be above this limit, so double the carrier liquid. If it is homogeneous, you can double the reading that is reported to actually get the sample strength.

There's no way to exit the app. It would be nice if they had some way to double tap back to exit or even just an added feature to select "exit" the app. I have to go into my app settings, then search for it and force the app to close, just to close the app. Other than that, it's great and really easy to use.