Privacy Policy

1. Local by Default

Welly was built with a single core principle: your health data is yours. Health correlations and daily metrics are calculated and stored locally on your device unless you explicitly use a feature that needs a server request.

2. Sign in with Apple

Welly uses Sign in with Applefor private account creation. This provides us with a unique identifier used exclusively to manage your subscription status and basic user profile. We never receive your password, and you can choose to hide your email address from us using Apple's "Hide My Email" service.

3. Subscriptions & Billing

Transactions are handled directly through the Apple App Store. We do not store your credit card or billing information. Your account serves as the bridge to ensure your premium features are available across your devices.

4. Data Collection & Usage

• •Health Data: Welly reads data from your Apple Health app (HealthKit) to provide wellness insights. This data is processed exclusively on your device.
• •AI Meal Logging: If you choose to log a meal with AI, the meal description or photo you submit is sent to Welly's backend and OpenAI so nutrition can be estimated. Estimates may be saved to Welly and HealthKit before you review or edit them.
• •No Model Training: OpenAI API data is not used to train models by default. We do not claim zero retention unless that account setting is enabled.
• •No General Cloud Sync: Your heart rate, sleep stages, and personal wellness signals are not uploaded to our servers for routine app use.
• •No Third-Party Tracking: We use no analytics SDKs or tracking pixels. Your habits remain your business.