1. Introduction
Welcome to Plunge Tracker, a cold plunge, sauna, and contrast therapy tracking application developed by Tappect. We are committed to protecting your privacy and handling your data with respect and transparency.
This privacy policy explains how Plunge Tracker ("we", "our", or "the app") collects, uses, stores, and protects your information when you use our mobile application.
Plunge Tracker is operated by Tappect and available on iOS. This policy applies to all users of the Plunge Tracker application.
2. Information We Collect
2.1 Account Information
When you create an account, we collect:
- Name (if provided during social sign-in)
- Profile information from third-party authentication services (Google, Apple)
Note: Plunge Tracker uses Google and Apple sign-in exclusively. We do not offer email/password authentication.
2.2 Session and Activity Data
We collect information about your therapy sessions:
- Session type (cold plunge, sauna, contrast therapy, cold shower)
- Session duration and timestamps
- Water and air temperature readings
- Session zones and intervals
- Personal notes and ratings
- Streak and achievement data
- Program enrollment and progress
2.3 Biometric and Health Data (Optional)
If you enable health integrations, we may collect:
- Heart rate data measured during sessions by a connected heart rate monitor
- Apple Watch sensor data (if Watch sync is enabled)
- Readings from Apple Health on iOS and Health Connect on Android, with your explicit permission
On both platforms we request read-only access to the following, and only these:
- Heart rate
- Heart rate variability
- Oxygen saturation
- Body temperature
- Respiratory rate
- Active calories burned
We read these only for the period of a therapy session you have just completed, so the app can show you how your body responded to it. We never write data back to Apple Health or Health Connect, and we never read them in the background — a read happens only when you finish a session while the app is open.
Health data stays on your device. Readings taken from Apple Health and Health Connect are stored only in the app's local storage on your phone. They are not uploaded to our servers, and they are not sent to Strava or any other third party.
Health and biometric data is never sold, never shared with advertisers, and never used for advertising or any purpose other than showing you your own session results. You can revoke access at any time in Apple Health, Health Connect, or the app's settings, and deleting your account erases the locally stored readings.
2.4 Device Information
We automatically collect technical information:
- Device type, model, and operating system version
- App version and unique app instance identifier
- Language and timezone settings
2.5 User Preferences
We store your app preferences:
- Temperature unit preference (Celsius/Fahrenheit)
- Weekly session goals
- Notification preferences
- Default session settings
3. How We Use Your Information
We use the collected information to:
- Track Your Sessions: Record and display your cold plunge, sauna, and contrast therapy history
- Provide Analytics: Generate statistics, streaks, and progress insights
- Sync Your Data: Allow cross-device synchronization when signed in
- Deliver Programs: Manage guided therapy programs and progress tracking
- Award Badges: Track achievements and milestones
- Send Notifications: Deliver session reminders and streak alerts
- Live Activities: Display real-time session progress on your lock screen (iOS)
- Improve the App: Analyze usage patterns to enhance features and fix bugs
We will never sell your personal information, health data, or session history to third parties.
4. Third-Party Services
Plunge Tracker integrates with the following third-party services:
- Supabase: Backend infrastructure for authentication, database storage, and real-time sync
View Supabase Privacy Policy - Google Sign-In: Authentication method
View Google Privacy Policy - Sign in with Apple: Authentication method for iOS users
View Apple Privacy Policy - Apple Health (HealthKit): Optional, read-only health data integration for biometric tracking on iOS. Data read from Apple Health stays on your device.
- Health Connect: Optional, read-only health data integration for biometric tracking on Android. Data read from Health Connect stays on your device and is not shared with us or anyone else.
- RevenueCat: Subscription and in-app purchase management
View RevenueCat Privacy Policy
These services have their own privacy policies. We recommend reviewing them to understand how they handle your data.
5. Data Storage and Security
We implement industry-standard security measures to protect your data:
- All data transmitted between the app and servers is encrypted using TLS/SSL
- Authentication is handled securely through OAuth providers (Google, Apple)
- Access to user data is restricted and monitored
- Regular security audits and updates
- Data backups are encrypted and stored securely
Offline-First: Your session data is primarily stored on your device. Cloud sync occurs when you sign in, ensuring your data is available even without an internet connection.
While we take security seriously, no method of electronic storage or transmission is 100% secure. We cannot guarantee absolute security of your information.
6. Your Rights and Choices
You have the following rights regarding your data:
6.1 Access and Portability
- Request a copy of all personal data we hold about you
- View your complete session history and statistics within the app
6.2 Correction and Updates
- Update your profile information directly in the app settings
- Edit or delete individual session records
6.3 Deletion
- Delete your account and all associated data in the app under Settings → Account → Delete Account
- If you cannot open the app, email hello@tappect.com from your account address and we will delete it for you
- Deletion takes effect immediately and is permanent — it cannot be undone, and your session history cannot be recovered
- Deleting your account does not cancel a Premium subscription; cancel that through the App Store or Google Play
- Some data may be retained for legal compliance (typically 30-90 days)
For a full breakdown of what is deleted and what is kept, see our account deletion page.
6.4 Permission Controls
- Notifications: Disable in app settings or device settings
- Apple Health: Revoke access in the iOS Health app or in app settings
- Health Connect: Revoke access in the Android Health Connect app or in app settings
- Apple Watch: Disable Watch sync in app settings
- Live Activities: Disable in app settings
To exercise any of these rights or for data-related questions, contact us at hello@tappect.com
7. Data Retention
We retain your data as follows:
- Account Data: Retained while your account is active
- Session Data: Retained to preserve your history, streaks, and statistics, unless you delete your account
- Biometric Data: Stored alongside session records; deleted when sessions or account are deleted
- Usage Analytics: Aggregated and anonymized data may be retained for up to 2 years
- Deleted Account Data: Removed from active systems within 30 days; backup copies deleted within 90 days
8. Children's Privacy
Plunge Tracker is designed for adults and is not intended for use by children under 13. Cold plunge and sauna activities carry inherent risks and should only be performed by adults or under adult supervision.
We do not knowingly collect personal information from children under 13. If you are a parent or guardian and believe your child has provided personal information without your consent, please contact us at hello@tappect.com and we will delete the information promptly.
9. International Data Transfers
Your information may be stored and processed in servers located in different countries, including the United States. By using Plunge Tracker, you consent to the transfer of your data to these locations.
We ensure that all international transfers comply with applicable data protection laws and that your data receives an adequate level of protection.
10. Changes to This Policy
We may update this privacy policy from time to time to reflect changes in our practices, features, or legal requirements.
When we make material changes, we will:
- Update the "Last updated" date at the top of this policy
- Notify you through the app or via email
- Request your consent if required by law
Your continued use of Plunge Tracker after changes constitutes acceptance of the updated policy.
11. Contact Us
If you have any questions, concerns, or requests regarding this privacy policy or your data, please contact us:
Email: hello@tappect.com
Subject Line: Plunge Tracker Privacy Inquiry
Developer: Tappect
App Identifier: com.tappect.plungetracker
We will respond to your inquiry within 30 days.
Plunge Tracker
Track Your Cold Plunge, Sauna & Contrast Therapy Journey
Developed with care by Tappect