Ketonix

it takes at least 20-30 min to warm up, i have to connect/disconnect many times, sometimes it doesn't show what I'm currently blowing until i go to the "homme" section and then back... expensive for something that doesn't work!!! Also itseems to not be accurate because blood ketones are 0.6 yet breath is 2? my first negative review so i don't do this lightly

This used to work as long as I plugged it into a USB for power, not the included battery. Had to let it warm up, but it registered ketones. Now that they updated for the new green device, the blue one says you are "in ketosis" but the ppm says 0 so you have no idea what level you are at. Very irritating!

Low quality app, I can´t even delete my measurements in the case I need like, a did a measurement while using my wife profile. Also I can´t export and import my data, meaning It will be lost if I change my phone in the the case I lost it or it breaks!! The graph only shows previous 7 days... Maybe the manufacturer should tell us how we can access the measurements on the Bluetooth services and we could develop a better OpenSource app!! The measurements from the device seems good, after 3 days of usage I am happy with it.