
Liz Barnes
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It only works if the lighting is just right. If you are in a lab or home kitchen, it's gonna be too bright and it's not going to work. If you move to a somewhat dim, but not too dim, room and make sure your phone isn't creating any shadow or glare the pH strip reader works. Be patient and be prepared to waste time and several strips practicing. Why do you think you need my location data?

Matt Kent
The camera functionality is awful. After trying numerous times, it was impossible to line up the camera with the reference using my phone. Either the app or the reference needs to be redesigned. because as it is now, it is not at all user friendly and impossible to use.

Stephanie Reed
Terrible. Doesn't work without Internet access and we have bad reception in the lab. It's way too hard to get the perfect focus, lighting, and alignment before it times out. If it worked it would be helpful for colorblind people.