Privacy Policy

Dosea — Effective date: March 22, 2026

This Privacy Policy describes how Dosea ("we", "us", or "our") handles your information through the Dosea mobile application and related services. By accessing or using the Service, you agree to the practices described below.

1. About the Service

Dosea is a mobile application designed to help users organize and track supplement routines with as little mental overhead as possible. Users can set their daily routine, add supplements by scanning barcodes or taking label photos, receive a daily plan, and keep a record of their intake history.

Medical Disclaimer:

  • Dosea does not provide medical advice, professional healthcare guidance, diagnoses, or treatment recommendations.
  • The information provided through the Service is for organizational and informational purposes only and should not replace advice from a qualified medical professional.
  • Always consult a healthcare provider before starting, stopping, or changing any supplement routine.

2. Key Definitions

Account

A user profile created to access and personalize the Service.

Application

The mobile application named "Dosea".

Service

The Application and its related backend infrastructure managed by the Developer.

Developer / Controller / Owner

Jaroslav, an independent developer based in the Czech Republic.

Device

The smartphone or tablet used to access the Application.

Personal Data

Information that identifies or can be reasonably linked to an individual user.

Usage Data

Technical information gathered automatically during Service interaction, such as logs, diagnostics, and app usage events.

Supplement Product Data

Information extracted or entered about supplement products, including product name, brand, barcode, serving size, suggested use, label facts, categories, and related metadata.

Supplement Entity Data

Structured information about supplement ingredients or compounds represented within products, including product-specific ingredient facts where applicable.

User Routine Data

Personalized routine information, such as wake time, sleep time, and optional meal times, used to organize supplement intake.

Adherence Data

Data about whether scheduled supplements were marked as taken or missed, along with streaks and related statistics.

3. Data We Collect

To provide the Service, we may collect the following categories of data:

3.1 Account Information

When you create an account using Apple Sign-In or another supported sign-in method, we may receive:

  • Email address
  • Name
  • Third-party user identifier
  • Authentication-related account metadata

3.2 Routine and Preferences

To generate your supplement plan, we store information such as:

  • Wake time
  • Sleep time
  • Optional meal schedule
  • Notification preferences
  • App settings related to scheduling and reminders

3.3 Supplement and Tracking Data

To support core app functionality, we store:

  • Your supplement products and related label data
  • Your active supplement plan
  • Scheduling and timing preferences linked to supplements
  • Dose events and reminder schedules
  • Adherence records, including taken or missed doses
  • Streaks and aggregated routine statistics

3.4 Scanning and Label Information

When you use barcode scanning or label capture features, the app may process:

  • Barcode values
  • Product photos or label images that you choose to provide
  • Extracted label information and verification-related data

Photos may be processed to extract supplement label details. We only retain such content as needed to support the product record, verification flow, and related app functionality.

3.5 Usage and Diagnostic Data

We may automatically collect limited technical data such as:

  • Device type
  • App version
  • Operating system
  • Crash logs
  • Performance diagnostics
  • General usage analytics

4. How Your Data Is Used

We process your information to:

  • Create and manage your account
  • Authenticate your access to the Service
  • Store and manage your supplement products and routine
  • Generate your daily supplement plan
  • Schedule reminders and notifications
  • Track adherence, streaks, and summary statistics
  • Support verification flows when product information is incomplete or unclear
  • Improve app stability, performance, and reliability
  • Protect the Service against misuse and abuse

AI-Enhanced Structuring and Summaries

Dosea may use AI services, including OpenAI, to help structure supplement-related information, extract label details, and generate summaries or evidence-backed context related to supplements. These outputs are intended to improve clarity and organization inside the app.

We do not use your personal data to train public AI models.

5. Legal Basis for Processing (GDPR)

For users in the European Union, we process personal data under the following legal bases:

  • Contractual Necessity: To provide the core features of the app, including account access, supplement planning, reminders, and tracking.
  • Legitimate Interests: To maintain app security, monitor performance, prevent abuse, and improve the Service.
  • Legal Compliance: Where processing is required to comply with applicable laws or legal obligations.
  • Consent: Where required, for example for certain notifications, platform permissions, or similar optional features.

6. Third-Party Service Providers

We work with selected providers to operate and improve the Service.

Infrastructure and Core Services

  • Supabase: Database, backend infrastructure, and authentication.
  • Expo: App framework and related mobile services, including notifications and scanning-related functionality where applicable.
  • RevenueCat: Subscription management and purchase status handling.

Analytics and Reliability

  • PostHog: Product analytics and usage insights.
  • Sentry: Crash reporting and diagnostics.

AI Services

  • OpenAI: Used for information extraction, structuring, and supplement-related summaries or contextual assistance.

Platform Providers

Apple and Google: App distribution, authentication support where applicable, and in-app purchase processing. We do not collect or store your full payment card details.

7. Data Retention and Deletion

We retain your data only for as long as necessary to provide the Service, comply with legal obligations, resolve disputes, and enforce agreements.

Account Deletion:

You can request deletion of your account and associated data through the app settings or by contacting us.

Upon deletion:

  • Your account identifiers and profile information are removed or anonymized.
  • Your supplement products, routine data, adherence history, and related app data are deleted, unless retention is legally required.
  • Limited technical logs may be retained temporarily for security, fraud prevention, or legal compliance purposes.

8. International Data Transfers

Some service providers may process data outside the European Economic Area. Where this happens, we take steps to ensure that appropriate safeguards are in place in accordance with applicable data protection laws, such as standard contractual clauses or equivalent legal mechanisms.

9. Push Notifications

Dosea may send push notifications to remind you about scheduled supplements or important app-related events. You can manage or disable notifications at any time in your device settings or within the app, where available.

10. Your Rights

Depending on your location and applicable law, you may have the right to:

  • Access your personal data
  • Correct inaccurate data
  • Delete your data
  • Restrict or object to certain processing
  • Request data portability
  • Withdraw consent where processing is based on consent

To exercise these rights, contact us at jaroslabs@gmail.com.

11. Children's Privacy

Dosea is not intended for young children, and we do not knowingly collect personal information directly from children in violation of applicable law. If you believe that a child has provided us with personal data unlawfully, please contact us so we can take appropriate action.

12. Security Statement

We use reasonable technical and organizational measures designed to protect your information against unauthorized access, loss, misuse, or alteration. However, no method of transmission or storage can be guaranteed to be completely secure.

13. Updates to This Policy

We may update this Privacy Policy from time to time. If we make material changes, we will post the updated version with a revised effective date. Your continued use of the Service after such changes become effective means you accept the updated Privacy Policy.

14. Contact

If you have any questions about this Privacy Policy or your data, contact us at: