HeartBeat Visualisation vs Upright

HeartBeat visualises the heart beat recorded by one of the many available BlueTooth Low Energy (BLE) heart beat sensors available. This application aims to give the user a clear readout of such a sensor. This software is build in such a way that is should work with any bluetooth low energy heart beat sensor available. During measurements, some statistical information about beat to beat interval timing is shown as an indication of the heart rate variability (HRV) The accuracy of the information depends heavily on the sensor used! Next to the statistical standard deviation between beats (SDNN), the number of succeeding beat cycles in a 20ms (NN20) and 50ms (NN50) interval is calculated together with the percentage of those cycles. (pNN20/pNN50) There are two charts, one of the last 5 minutes and one overall chart with aggregated data. The App has a function to upload the raw sensor data to a TCP/IP socket for off loading and processing. for more information about the statistical methods use, please see http://en.wikipedia.com/wiki/Heart_rate_variability

Upright is a symptom and standing-test tracker built for people with POTS (Postural Orthostatic Tachycardia Syndrome). LOG SYMPTOMS IN TWO TAPS — Track dizziness, fatigue, palpitations, brain fog, and more, even on your worst days. GUIDED STANDING TESTS — A step-by-step flow: lie down five minutes, stand, and record heart rate at 1, 3, 5, and 10 minutes. Leave the app during timers — notifications bring you back at the right moment. With an Apple Watch, heart-rate fields fill automatically during a workout. A REPORT YOUR DOCTOR WILL READ — Your tests, averaged, on one page. Made for the appointment desk. Upright is a documentation tool, not a diagnostic device. It never interprets your results — that conversation belongs to you and your doctor. Health data stays private; heart rate is read-only from HealthKit.