This policy explains what DoseDyno collects, how the app uses that information, and the choices you have. DoseDyno does not sell personal information and does not use personal information for cross-app advertising or tracking.

I. Information We Process

  • Account information: Firebase user ID, display name, email address when you use email or Apple sign-in, language, timezone, and subscription status.
  • Profile and nutrition information: age or birth year, sex, height, weight, goals, dietary preferences, health conditions you choose to enter, meal logs, nutrient totals, supplement inventory, and reminder settings.
  • Apple Health information: with your permission, selected activity, sleep, heart-rate, height, body-mass, and nutrition data. DoseDyno may store summaries needed to create app reports. Apple Health permissions are optional and can be changed in iOS Settings.
  • Photos: meal and supplement-label photos you choose to upload for analysis.
  • Purchase and device information: StoreKit transaction identifiers and signed transaction data used to verify subscriptions, plus Firebase Cloud Messaging tokens used to deliver notifications.

II. How We Use Information

We use this information to authenticate your account, sync your data, estimate nutrition from photos, maintain supplement inventory, create structured summaries, verify purchases, deliver reminders, prevent abuse, troubleshoot failures, and operate the service. DoseDyno outputs are informational estimates and are not medical diagnoses.

III. Cloud and AI Processing

DoseDyno is not an on-device-only service. Account data, app records, health summaries, and uploaded photos are processed through Google Firebase services, including Authentication, Firestore, Storage, Cloud Functions, App Check, and Cloud Messaging. Meal photos, supplement-label photos, and relevant text prompts may be sent by our server to our AI model provider for analysis. Apple processes HealthKit permissions, Sign in with Apple, and StoreKit purchases under Apple's terms. Service providers process data only to provide their contracted services to DoseDyno.

IV. Retention and Deletion

We retain account data and uploaded content while your account is active, unless a shorter period is required for operational or legal reasons. You can choose Delete Account in the app settings to request deletion of your DoseDyno account data, uploaded files, notification token, and authentication account. Data already written to Apple Health is controlled through Apple Health and may need to be deleted there separately. Limited security, transaction, or deletion records may be retained where required to prevent fraud, complete deletion, restore an eligible active App Store purchase, or comply with law. Deleting a DoseDyno account does not cancel an App Store subscription; subscriptions must be managed separately through Apple.

V. Security

We use access controls, encrypted network transport, platform authentication, App Check, and provider-managed encryption at rest. No system can guarantee absolute security. Do not upload information you do not want processed by the service.

VI. Your Choices and Rights

You can manage camera, notification, and Apple Health permissions in iOS Settings. Depending on your region, you may also have rights to access, correct, delete, or obtain a copy of personal information and to object to or restrict certain processing. Contact us to make a request. We may need to verify your identity before completing it.

VII. Children and Changes

DoseDyno is intended for people aged 18 and older. We may update this policy as the service changes. Material changes will be reflected by a new effective date or an in-app notice where appropriate.

Effective Date: July 11, 2026. Privacy inquiries: contact@dosedyno.app