Heart Rate Variability Logger vs Health Export

Heart Rate Variability Logger lets you record, plot and export time, frequency and non-linear HRV Features (includes experience sampling, RR-interval correction, DFA alpha 1 for aerobic threshold estimation in real-time, comparison between recordings, activity monitoring & step counting, location tracking). Heart Rate Variability Logger requires a Bluetooth Low Energy (also called Bluetooth Smart or BLE or 4.0) heart rate sensor (we recommend Polar H7 or H10) Main features: - Extracts, plots, stores and exports heart rate, rr-intervals, time and frequency domain heart rate variability features (AVNN, SDNN, rMSSD, pNN50, LF, HF, LF/HF, alpha 1 from DFA) - Configurable experience sampling for events annotation - Comparison between up to 3 recordings lets you get a better understanding of differences in HRV under different contexts in a glance. The comparison modality includes also Outlier removal - Activity tracking: step counter or accelerometer derived motion intensity for user context (step counter only for iPhones 5S) - Location tracking, either using GSM/WiFi networks (low battery consumption) or GPS (high accuracy) - Configurable time window for features computation (choose between 30 seconds, 1, 2 or 5 minutes) - RR-intervals correction can be enabled to prevent ectopic beats or artifacts from affecting HRV features - export for Kubios - Filters data based on the selected threshold - Shows HR in the app icon - Data export using iTunes or Dropbox - Tested for recordings longer than 24 hours Please note that continued use of GPS running in the background can dramatically decrease battery life.

Health Export saves your Apple Health data as files you own. Pick a folder in the Files app, choose JSON Lines or CSV, and export. You get one file per data type, ready for a spreadsheet, a script or your own archive. WHAT'S INCLUDED • Every quantity and category type Apple Health offers — steps, heart rate, HRV, sleep, weight, nutrition, blood pressure, glucose, cycle tracking, symptoms and more • Workouts with events, activity segments, statistics and GPS routes • Heartbeat series, ECG recordings and audiograms • State of Mind entries and GAD-7 / PHQ-9 assessments • Activity ring summaries and your characteristics (date of birth, sex, blood type) • Source app, device and metadata for every record OPTIONS • JSON Lines — one record per line with every detail • CSV — common fields as columns, nested details as JSON • Range — all time, or the last year, 90, 30 or 7 days • Changes only — adds what was added or deleted since your last all-time export to the same files, so the folder always holds one complete export FREE AND PRO Exports of the last 7 or 30 days are free. Health Export Pro is a one-time purchase — no subscription — that unlocks the last 90 days, the last year, all time and Changes only. PRIVATE BY DESIGN No account, no analytics, no network connections. The app only reads the data you allow and writes it to the folder you choose. It never writes to Apple Health. A manifest lists every file and how many records it holds, so you can check the export at a glance.