Good app
Love this app. I just calibrated the device.
Response from developer
Thank you for your rating!
Doesn’t seem to work
Would be great if it worked. Numbers never appeared after following instructions
Response from developer
Sorry you were unable to use the app. Did you press the left button in the bottom row to start calibration? The numbers should appear on the screen and update every 10 seconds after you press this button. And the main question: did you install the app on your phone? It won't work on a desktop, because it doesn't have the necessary sensors. You can watch a demo video on the app's website: https://sites.google.com/view/sleep-apnea-detector/home