Privacy Policy for Sereno: Daily BalanceLast Updated: October 20, 2025 | Effective Date: October 20, 2025IntroductionWelcome to Sereno: Daily Balance ("we," "our," or "us"). We are committed to protecting your privacy and ensuring you have a positive experience while using our app. This Privacy Policy explains how we collect, use, store, and protect your personal information when you use the Sereno app (the "App").By using Sereno, you agree to the collection and use of information in accordance with this policy.
What We CollectInformation You ProvideAccount: Apple Sign In data (user ID, optional name/email)Food Logs: Meal photos, manual entries, nutritional data, timestampsSleep Data: Sleep duration, quality assessments, mood check-insWellness: Meditation usage, breathing exercises, mood responsesInformation We Access (With Permission)HealthKit Data: Steps taken, calories burned from activity (read-only, stays on device)Camera/Photos: Only when you capture meal photos for food analysisUsage Data: App features you use and how often, session duration, device infoHow We Use Your InformationCore Features: Food recognition, calorie tracking, sleep analysis, wellness insightsAI Processing: Photos sent to OpenAI for food identification (temporary, not stored)Data Sources: USDA, Nutritionix, Open Food Facts for nutritional informationApp Improvement: Usage analytics, bug fixes, feature development
Third-Party ServicesFirebase (Google) - Data storage & sync. We share user data, food logs, and sleep data with Firebase for secure storage and device synchronization.OpenAI - Food recognition AI. We temporarily send meal photos to OpenAI for food identification. Photos are processed but not stored permanently by OpenAI.Nutritionix - Nutrition database. We share food names only to retrieve accurate nutritional information.USDA - Free nutrition API. We share food names only to access the public nutrition database.Open Food Facts - Barcode database. We share barcode numbers only to identify packaged food products.Apple Sign In - Authentication. Your sign-in data is managed directly by Apple according to their privacy policies.
Data Security & StorageWhere: Firebase (Google Cloud, USA) with encrypted transmissionHealthKit: Data stays on your device only - never uploaded to serversPhotos: Processed temporarily, then discardedSecurity: HTTPS encryption, user-restricted access, industry-standard practices
Your Rights & ControlsAccess & Control: View, edit, or delete your data anytime in the appPermissions: Manage camera, photos, HealthKit access in iOS SettingsAccount Deletion: Data permanently removed within 30 daysData Export: Contact us to request your dataHealth Data: Revoke HealthKit access anytime in iOS Settings → Health → Data Access & Devices
Important NotesWe never sell your personal informationHealthKit data never leaves your devicePhotos are processed but not stored long-termAll data transmission is encryptedYou control all permissions and dataChildren's PrivacyNot intended for users under 13. We do not knowingly collect information from children.
International UsersData Location: Stored in United States (Firebase/Google Cloud)GDPR Rights: European users have additional rights (access, deletion, portability)CCPA Rights: California residents have specific privacy rights
In-App PurchasesPayments: Processed by Apple (we don't store payment info)Subscriptions: We only store subscription status (active/expired)Refunds: Handled by Apple SupportContact UsEmail: [email protected] Support: Settings → SupportResponse Time: Within 5 business days
Changes to PolicyWe may update this policy. Significant changes will be communicated through the app. Continued use constitutes acceptance of changes.

By using Sereno: Daily Balance, you acknowledge reading and understanding this Privacy Policy.