Turn on Google Health to Apple Health
The Google Health app can share data with Apple Health on an iPhone or iPad running iOS 16.4 or later. Your device needs an internet connection when you connect, and you must be signed in to the Google Health app with an adult Google Account. These are Google's steps:
Open Connections in Google Health
Open the Google Health app. At the top left, tap Connections, then Apps and services.
Choose Apple Health
Under Add connections, tap Apple Health, then tap Get started.
Agree to the consent page
A page titled Sync Google Health with Apple Health appears. Tap Agree to continue.
Grant permissions
Follow the prompts to authorize the connection. Turn all categories on, or pick the ones you want and tap Allow. When the confirmation page appears, tap Done.
What Google Health writes to Apple Health
Google lists these categories: steps, VO2 max, floors, active calories, distance, exercise and exercise routes; body temperature; sleep sessions and sleep stages; heart rate, resting heart rate, oxygen saturation, respiratory rate, and blood glucose; weight and body fat percentage; nutrition and water; mindfulness; and cycle tracking data.
It works the other way too. Google Health can bring in data from your Apple Watch, iPhone, and iPad health and fitness apps through Apple Health, and it currently reads three months of your Apple Health history.
When it stops syncing
Google says new metrics need their permissions reviewed and granted before they are available, so if a category never shows up, check that its permission is on. Disconnecting in Google Health (Connections, Apps and services, Apple Health, Disconnect) stops new data from syncing, but the permissions stay granted until you remove them in the Apple Health app.
If you meant Android Health Connect
Health Connect is the health hub built into Android, and it is a different thing from the Google Health app. Apple Health and Health Connect do not sync with each other directly. Here are the honest options, from the most manual to the one that sidesteps the problem entirely.
Per-app sync through each platform
Many fitness apps (your running tracker, your scale app, your sleep app) can write to both Apple Health and Health Connect. If the app you already use supports both, grant it permission on each device and it becomes the bridge for its own data. The catch: each app only carries the metrics it owns, so a step app moves steps but not your sleep or heart rate.
A third-party bridge app
A handful of utility apps exist to read from one platform and write to the other. They work, but they add a moving part you have to trust with your full health record, they often run on only one of your two phones, and they can silently stop syncing after an OS update. Treat them as a stopgap, not a foundation.
Connect both to one service that reads each side
Instead of forcing Apple Health and Health Connect to mirror each other, connect each one to a single service that reads both independently. Your iPhone shares Apple Health, your Android phone shares Health Connect, and the service stitches them into one history. Nothing has to be copied from platform to platform, so nothing breaks when an OS updates.
The first two paths try to make one phone hold everything. The third accepts that your data is split across devices and unifies it one level up, where a coach can actually use it. That is the approach Wellness Project takes.
Syncing copies your data. It does not read it.
Google's Apple Health connection and every Health Connect bridge do the same job: they copy records from one phone store into another. That is useful, but the data still lands in an app that shows you charts one category at a time, and nothing ties the pieces together.
The reason most people want Google Health in Apple Health in the first place is not the file itself. It is that they want one place that sees the whole picture: the steps from the Android phone in their pocket, the workout from the Apple Watch on their wrist, the sleep from the ring on their finger. Unify it at the coach layer and that whole picture finally exists in one place.
How to set it up
On iPhone, open the app and grant Apple Health permission so it can read steps, workouts, sleep, heart rate, and HRV. On Android, grant the same permissions through Health Connect. If you also use Fitbit or Oura, connect each one from your account settings with a normal OAuth sign-in. From then on, every device writes into the same history, and your coach reads all of it together.
You do not have to pick a single phone or abandon a wearable. The point is to stop fighting the platform divide and let one coach see across it.
Sync moves your data. Wellness Project reads it.
Connect Apple Health, Health Connect, Fitbit, and Oura to one AI coach that reads your whole history. Free Basic, with Pro at $9.99/month.
