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Lifstack can personalize your experience using health data — but connecting a wearable device is optional. You can always add your data manually if you prefer.

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🔗 Connect Health Data

Connect devices on Lifestack

Use Without Wearables

Use With Wearables (Optional)

Supported Devices/Services

Connect devices to your health apps

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[From 2026. Aug 15]

We've updated how wearables connect:

If you already have a wearable connected, nothing changes — it keeps working exactly as before.

This only affects new connections: Lifestack now reads new wearable data through Apple Health (iPhone) or Health Connect (Android) instead of connecting each brand separately — the same hub your Garmin, Oura, Whoop, or Fitbit app is probably already sending data to.

Connecting a new device? Connect Apple Health or Health Connect below, and its data flows in automatically.

How to connect devices to Apple Health

How to connect devices to Health Connect

Garmin still connects directly for stress data, since that's not available through Apple Health/Health Connect yet.

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📈 How Lifestack Uses Health Data

Sleep

Heart Rate

Nutrition

Stress

Exercise

🔒 Data Security

• Lifestack uses a trusted third-party API called Terra to connect your wearable devices. Terra ensures that all data is encrypted. When you link a device, Terra (as our processor) securely obtains the necessary data from your device/app provider and transmits it to us. Terra’s own end-user privacy terms describe the categories of data processed (e.g., activity, body metrics, sleep, menstruation, nutrition, device details), retention (typically ~2 days, up to 6 months where required by providers), international transfers (primarily UK), security, sharing with infrastructure providers, and your privacy rights. Please review Terra’s End User Privacy Policy for details: https://tryterra.co/privacy
• In Lifestack’s database, only metadata related to sleep, stress, heart rate (depending on your permissions and devices), and energy predictions is stored. This information is fully anonymized, making it impossible to identify individual users.
• Take a look at Privacy Policy for more details.

❓Common FAQ (Health)

• Do I need a wearable device for Lifestack to work?
• Why can’t I connect my Apple Health to Lifestack?
• Why can’t I connect my Samsung Health to Lifestack?
• Why can’t I connect my Google Fit to Lifestack?
• Why isn’t my sleep data syncing?
• Why isn’t my exercise data syncing from Apple Health?
• What wearable devices are compatible with Lifestack?
• How is my health data protected?
• What if I can’t find my sleep tracking app or device?