Oryn
Oryn is a personal health app for iPhone. It brings your sleep, steps, resting heart rate, and heart rate variability together from Apple Health and Google Health into one view, keeps track of which source reported each value, and explains what the combined pattern shows.
What Oryn does
Most people already carry more than one health source: a phone counting steps, a watch tracking sleep, an app reading heart rate. Each one tells a partial story, and they do not always agree. Oryn solves that specific problem. It:
- Reads a fixed, narrow set of health measurements from the sources you connect.
- Combines readings that describe the same day, removing double-counting when your phone and watch both recorded the same activity.
- Keeps the origin of every value, so you can always see which source a number came from.
- Shows how a merged value was decided when two sources disagree, instead of silently picking one.
- Builds a personal baseline from your own history, so a change is measured against you rather than a population average.
The four measurements the daily read is built on
Sleep duration
How long you actually slept, reconciled across the sources that recorded it.
Steps
Daily movement, de-duplicated when your phone and watch both counted it.
Resting heart rate
Your baseline, tracked against your own history rather than a population average.
Heart rate variability
A quiet signal of recovery, shown with the uncertainty it deserves.
These four carry the daily read, because they are the ones a personal baseline can be built from reliably. Oryn can show you more than this — the full list of Apple Health categories it reads is below — but it asks for no location history and no contact data, from any source, ever.
What you tell Oryn yourself
Sensors measure your body. They cannot tell how a day actually landed on you, and that is often the part you most want explained. So Oryn asks one question in the evening — how the day was on you — answered with a single tap on a five-word scale, and optionally what shaped it: work, people, sleep, your body, money, or the news.
This is the only information in Oryn that you enter rather than a device reports. It is yours: it appears in your data export in full, it is deleted with your account, and it is never used to advertise or marketed to anyone. It is never required — the app works without it, and a day you skip is simply blank.
Oryn keeps what you say separate from what your devices measure, and never folds one into the other. Keeping them apart is the point: it is what lets Oryn ask honestly whether the two agree, instead of quietly deciding they must.
How Oryn uses Google Health data
Connecting Google Health is optional — Oryn works with Apple Health alone. If you do connect it, Oryn asks for read-only access to three scopes, each for a specific feature:
| Scope requested | Why Oryn needs it |
|---|---|
googlehealth.sleep.readonly |
To read sleep duration, so nights recorded by an Android phone or a non-Apple wearable appear alongside the ones Apple Health recorded. |
googlehealth.activity_and_fitness.readonly |
To read daily step counts, so movement tracked outside the Apple ecosystem is included and not double-counted. |
googlehealth.health_metrics_and_measurements.readonly |
To read resting heart rate and heart rate variability, so recovery baselines reflect every device you use. |
Oryn never requests write access and cannot modify anything in your Google account. The data retrieved through these scopes is used only to display your own health view inside the app. It is not sold, not shared, not used for advertising, and not used to train machine learning models. You can disconnect at any time from inside Oryn or from your Google Account permissions page, and you can delete everything Oryn holds from the app's Privacy screen.
Oryn's use and transfer of information received from Google APIs to any other app adheres to the Google API Services User Data Policy, including the Limited Use requirements.
How Oryn uses Apple Health data
On iPhone, Oryn asks for read-only access to the Apple Health categories it can show you — the four above that lead the daily view, and the wider set behind them: activity and energy, heart, recovery, sleep, respiratory, body, mobility, hearing, mindfulness, cycle, nutrition, and symptoms. Oryn never asks to write to Apple Health, and never modifies anything already in it.
You grant permission per data type on Apple's own screen, and Oryn only ever receives the types you allow — declining any of them leaves the rest working. You can change or revoke every one at any time in the iOS Health app, and Oryn is designed to say "not measured" rather than quietly fill the gap. Data obtained through Apple HealthKit is used solely to provide the features described on this page. It is never used for advertising or marketing, never sold, and never shared with third parties.
What Oryn does not do
- It does not diagnose, treat, or give medical advice. It is not a medical device.
- It does not sell your data, and there is no advertising anywhere in the product.
- It carries no third-party analytics, tracking, or advertising SDKs — not in the app, not on this page.
- It does not use streaks, scores, or notifications designed to make you anxious.
- It does not claim certainty it does not have. When a pattern is still forming, it says so.
Your data stays yours
You can export everything Oryn holds about you as a downloadable archive, and you can delete your account and health data from inside the app at any time. Deletion is permanent, and it removes your data from live systems within 24 hours. The Privacy Policy describes exactly what is stored, for how long, and why. The Terms of Service set out the agreement between you and Oryn.