This is an absolute wonderful app. I payed and have full access BiPAP love it. We do need a couple of calculators. Please see this. There is no known app in existence that had the two calculators. These are very important.

1: THE Apnea Hypopnea Index.
2: THE Respiratory Disturbance Index. THESE WOULD BE SO HELPFUL. IF I COULD TYPE IN THE NUMBER OF APNEAS, HYPOPNEAS AND RERAs and then the number of hours the patient slept to get the Apnea Hypopnea Index AND BELOW THAT NUMBER WAS the Apnea Hypopnea Index This would be indescribably wonderful. It would be profoundly wonderful and helpful in the poly sonogram laboratory. Maybe some other Calculators used in sleep medicine would be helpful. This app is absolutely WONDERFUL TO USE!!!!