Privacy Policy

AI-Powered Health Insights — Data Processing Disclosure

MotionSync uses artificial intelligence to provide personalized health insights through our AI Health Coach feature. When you use this feature, the following health data may be shared with our AI processing infrastructure:

• Vitals — heart rate, blood pressure measurements
• Sleep — duration, quality score, deep sleep percentage
• Activity — daily steps, active minutes, workout data
• Health Profile — height, weight, medication names
• Goals — active health goal names and progress

Third-Party AI Service Provider

Your health data is processed by open-weight AI models running on SayGM, a confidential AI inference service. We only use SayGM's confidential models, which run inside a hardware-isolated trusted execution environment (Intel TDX), so your data is not forwarded to other AI companies such as OpenAI, Anthropic or Google. Your data is processed solely to generate your health insights and chat responses. SayGM's data handling is described in its privacy documentation.

Your Control

You can control whether your health data is shared with the AI at any time:

• A consent dialog is shown before your first AI chat interaction
• You can toggle health data sharing on or off in Settings → Privacy & Security → AI Health Coach
• When disabled, you can still use the AI chat but without personalized health context

Other Third-Party Services

• Sentry (Functional Software, Inc.) — crash reporting and error tracking. No personal health data is sent to Sentry.
• RevenueCat — subscription and purchase management. Receives your user ID and purchase history.
• Amazon Web Services (AWS) — cloud infrastructure hosting all backend services. Data is encrypted at rest and in transit.