Your Watch measures. Your iPhone explains. Your Mac looks back over the year. They talk to each other — and to nobody else.
Not one app squeezed onto three screens. Three apps that know their job — and share one picture of you.
Raise your wrist and you know where you are, without opening a phone.
The center of it all. It reads Apple Health and turns it into answers.
A bigger screen, a bigger model and time to think. Included with Pro.
From the moment you fall asleep to a pattern you would never have spotted alone.
Sleep stages, heart rate, HRV, breathing and wrist temperature go into Apple Health on your iPhone. That is Apple's own sync, between your own devices.
Metrya reads the night from Apple Health and scores it against your own usual. This part is plain arithmetic on the phone. No AI, nothing sent.
The phone hands today's numbers to the Watch. From then on, Reserve keeps moving with the Watch's own samples.
A model you downloaded to the iPhone answers from your own nights. It works in Airplane Mode, because it never needs the network.
With Keep in sync on, the phone sends its stored days while the app is open. Tap Send and it adds a year of history. It travels encrypted with your pairing code, straight to the Mac.
Sleep week runs every Monday. The Mac works out every number. The model only writes the words, and every number in them is checked. A quiet week stays quiet.
Magnesium at night, against deep sleep. Lab compares the nights with it and without it, then tries again. These are patterns in your own days, not proof.
Here is every path your health data can take. Solid lines are always on. Dashed lines only happen if you turn them on.
Nothing to sign up for on any device. Pro comes from your Apple ID.
A data type you turned off for the AI on the iPhone stays out of every answer on the Mac.
Sending to the Mac does not change anything on your phone.
Heads Up looks up the weather for a rough location. Food search asks a food database. No health data goes with them.
Open Metrya on the Mac. It shows a six-digit code. On the iPhone, go to Settings → Mac and type it.
Tap Send everything once. After that, Keep in sync keeps the Mac current while the app is open.
The Mac answers from its own copy, so your iPhone can stay in your pocket.
Without the code, the connection is refused — in both directions.
Metrya is free on iPhone, with an Apple Watch app. Pro adds the AI — and the Mac app, at no extra cost.
Mac app: experimental beta, macOS 26 or later, needs Metrya 2.11.21 or later on iPhone. Not a medical device.
