Privacy Policy – WATCHFIT® Application
Last updated: 2026.02.23
WATCHFIT® (“we”, “our”, or “us”) operates the WATCHFIT® mobile application (the “Application”), available on Google Play and Apple App Store.
This Privacy Policy describes how we collect, use, store, and protect personal data and health & fitness data when you use the Application.
By using the Application, you acknowledge that you have read and understood this Privacy Policy.
1. Data Controller
Data Controller: WATCHFIT®
Contact email: info@watchfit.tech
2. Data We Collect
2.1 Personal Data
We may collect personal data voluntarily provided by the user, including:
- Email address
- Name (optional)
- Account identifiers used for authentication
This data is used to create and manage your account and provide the requested services.
2.2 Health and Fitness Data (Sensitive Data)
When you use the fitness tracking features of the Application, WATCHFIT® may collect and process the following health and fitness data:
- Heart Rate Data
Real-time heart rate measurements collected from connected wearable devices
(e.g. CL837 band or compatible devices). - Workout Data
Exercise type, duration, repetitions, sets, intensity, and performance metrics. - Sleep Data
Sleep duration and sleep quality metrics, when sleep tracking features are enabled. - Biometric Data
Weight, height, and body composition data voluntarily entered by the user.
Health and fitness data is considered sensitive personal data and is processed with enhanced security measures.
2.3 App Usage and Technical Data
We may automatically collect limited technical information, including:
- IP address
- Device and operating system information
- App usage statistics and performance data (e.g. crashes, feature usage)
This data is used solely to improve stability, security, and performance of the Application.
3. Purpose of Processing
WATCHFIT® processes data exclusively to:
- Provide the core functionality of the Application
- Deliver personalized fitness insights and AI-powered coaching
- Track workout progress and historical performance
- Generate fitness analytics and reports
- Ensure app security, reliability, and performance
- Comply with legal obligations
🚫 WATCHFIT® does not sell, rent, or share health data and does not use health or fitness data for advertising, marketing, or profiling purposes.
4. Legal Basis (GDPR)
Where applicable, data processing is based on:
- Performance of a contract (providing the requested services)
- User consent (health data, Health Connect / HealthKit sync)
- Legitimate interests (security, fraud prevention, service improvement)
- Legal obligations
Consent may be withdrawn at any time.
5. Health Connect & Apple Health Integration
With your explicit consent, the Application may integrate with:
- Google Health Connect (Android)
- Apple HealthKit (iOS)
When enabled:
- Workout sessions (type, duration, heart rate) may be written to your device’s health platform
- Synchronization is optional and can be enabled or disabled at any time from the Application settings
WATCHFIT® does not read data from Health Connect or Apple HealthKit unless you explicitly authorize it.
All integrations fully comply with Google and Apple health platform policies.
6. Third-Party Services
The Application uses the following third-party services only to provide essential functionality:
6.1 Google Play Services
Used for app distribution, updates, and platform services.
6.2 Firebase (Google LLC)
Used for:
- Secure user authentication
- Cloud storage of user and workout data
- App analytics and performance monitoring
Firebase Privacy Policy:
https://firebase.google.com/support/privacy
6.3 OpenAI
Used to provide AI-powered fitness coaching, conversational chat, and voice interaction features. Before any data is sent to OpenAI, users are presented with a clear in-app consent dialog that explains what data is shared, identifies the recipient, and requires explicit permission.
Data sent to OpenAI may include:
- Chat messages sent and received within the AI coach
- User profile information (age, gender, height, weight, fitness goals)
- Fitness and workout performance data (test results, exercise metrics)
- Voice audio recordings (when using the real-time voice mode)
- Photos shared by the user (e.g. food images, exercise form)
This data is transmitted solely to generate personalized AI responses and is not used for any other purpose. WATCHFIT® uses OpenAI’s API with the following protections:
- Data sent via the API is not used by OpenAI to train or improve their models (as per OpenAI’s API Data Usage Policy)
- All data is transmitted over encrypted connections (HTTPS/TLS)
- No conversation data is stored by OpenAI beyond the duration needed to process the request (zero data retention policy enabled)
Users may revoke their AI data sharing consent at any time from the app’s Settings → AI & Privacy section. Revoking consent immediately stops all data transmission to OpenAI.
OpenAI Privacy Policy: https://openai.com/privacy/
OpenAI API Data Usage Policy: https://openai.com/policies/api-data-usage-policies/
7. Data Storage and Security
User data is securely stored using industry-standard protections, including:
- Encryption in transit (HTTPS / TLS)
- Access restricted to authenticated users
- Logical separation of data per user account
WATCHFIT® implements appropriate technical and organizational measures to protect data against unauthorized access, loss, or disclosure.
8. Data Retention
Data is retained only for as long as necessary to:
- Provide the Application’s services while the account is active
- Comply with legal obligations
- Resolve disputes and enforce agreements
When data is no longer required, it is deleted or anonymized.
9. User Rights
Depending on applicable law, users have the right to:
- Access their data
- Request correction of inaccurate data
- Request deletion of personal and health data
- Restrict or object to processing
- Request data portability
- Withdraw consent at any time
Requests can be made by contacting info@watchfit.tech.
10. Account and Data Deletion
Users may request complete deletion of their account and all associated data by:
- Using the “Delete Account” feature within the Application (if available), or
- Contacting info@watchfit.tech
Upon verification, data will be permanently deleted unless legal retention is required.
11. Children’s Privacy
The Application is not intended for children under 13 years of age.
WATCHFIT® does not knowingly collect personal or health data from children.
If such data is discovered, it will be deleted immediately.
12. Changes to This Privacy Policy
This Privacy Policy may be updated periodically.
Any changes will be published on this page with an updated revision date.
13. Contact
For privacy-related questions or requests:
