Last updated: February 21, 2026
DreamTrack reads health data from Apple HealthKit, including sleep stages, heart rate, heart rate variability, blood oxygen, respiratory rate, wrist temperature, and environmental noise. This data is used solely to analyze your sleep quality and is never transmitted off your device.
All data is stored locally on your device using Apple's SwiftData framework. No data is sent to external servers. There are no user accounts, no cloud sync, and no analytics.
DreamTrack uses Apple HealthKit to read and write sleep data. It optionally uses Apple HomeKit to create sleep-related automations. No third-party SDKs, analytics, or advertising frameworks are included.
We do not collect, share, or sell any personal data. The optional CSV/JSON export feature saves data locally on your device for your own use.