Privacy Policy
Last Updated: June 29, 2026
MHJ Apps ("we", "our", or "us") operates the Pust Reset mobile application (the "App"). This Privacy Policy explains how we collect, use, and protect your information when you use our App.
Summary
- •Your health data stays on your devices. We never receive it.
- •No accounts required. The App works without accounts or sign-ups.
- •Anonymous analytics. We collect usage patterns to improve the App. No personal data.
- •Privacy-first design. Analytics data is anonymized and hosted in the EU.
Information We Collect
Health Data (via Apple HealthKit)
The App accesses the following health data through Apple HealthKit:
| Data Type | Purpose | Storage |
|---|---|---|
| Heart Rate | Display during breathing sessions (Apple Watch) | Stays in HealthKit on your device |
| Mind & Body Workouts | Save completed breathing sessions with technique, rounds, and retention hold times | Written to HealthKit on your device |
| Mindfulness Minutes | Optional: count sessions toward your daily mindfulness goal | Written to HealthKit on your device |
| State of Mind | Optional: log how you feel after a session (iOS 18 and watchOS 11) | Written to HealthKit on your device |
Important: Health data is processed entirely on your device. We never receive, transmit, or store your health information on any servers.
Settings and Preferences
Your app settings (technique configurations, haptic intensity, daily goals, voice and breath audio toggles) are stored:
- Locally on your device using iOS/iPadOS/watchOS standard storage
- In iCloud (if signed in) to sync settings between your iPhone, iPad, and Apple Watch
This uses Apple's iCloud Key-Value Store, which is encrypted and managed by Apple. We do not have access to your iCloud account or data.
In-App Purchase
Pust Reset offers a one-time in-app purchase to unlock unlimited sessions. Payment is processed entirely by Apple. We do not collect, store, or have access to your payment information. We receive only an anonymous confirmation that the purchase was made.
Analytics Data
We use PostHog, a privacy-focused analytics service, to understand how people use the App. This helps us improve features and fix issues.
What We Collect
| Data Type | Examples | Purpose |
|---|---|---|
| Usage events | Session started, technique selected, feature used | Understand which features are valuable |
| In-app events | Feature usage, settings changed, onboarding progress | Improve the experience |
| Device info | iOS version, device type, app version | Ensure compatibility |
| Anonymous identifier | Random UUID (not linked to you personally) | Count unique users |
What We Do NOT Collect via Analytics
- No names, emails, or contact information
- No health data (heart rate, sessions, retention holds). This stays in HealthKit.
- No location data
- No Apple ID or personal identifiers
- No purchase history beyond an anonymous unlock confirmation
- No screen recording or session replay
Data Storage
Analytics data is processed by PostHog and stored on servers in the European Union (Frankfurt) for GDPR compliance. Data is not sold or shared with advertisers.
Analytics in Debug Builds
Analytics is disabled in development/debug builds. Only release versions (App Store, TestFlight) send analytics data.
Information We Do NOT Collect
- No personal information (name, email, phone number)
- No account or login credentials
- No advertising identifiers
- No health data on our servers (stays in HealthKit)
- No location data, ever (the App does not request location access)
- No payment information (handled by Apple)
How Your Data is Protected
On-Device Processing
All health data processing happens locally on your iPhone, iPad, or Apple Watch. Your breathing session data, heart rate, retention holds, and mindfulness minutes never leave your device.
Apple's Security
Data synced via iCloud uses Apple's encryption and security infrastructure. We rely on Apple's security practices for protecting synced preferences.
Analytics Security
Anonymous usage analytics are transmitted securely (HTTPS) to PostHog's EU servers. This data cannot identify you personally and is used solely to improve the App.
Your Rights and Choices
HealthKit Data
You can revoke the App's access to HealthKit at any time:
- Open the Settings app on your iPhone
- Go to Privacy & Security → Health → Pust Reset
- Toggle off any data types you wish to restrict
Delete Your Data
To remove all App data:
- Delete the App from your iPhone, iPad, and Apple Watch
- In the Health app, go to Browse → Mindfulness or Workouts to view or delete saved sessions
- To clear iCloud-synced preferences, sign out of iCloud or delete the App from all devices
Analytics Data
Analytics data uses a random identifier that cannot be linked to you personally. Because this data is anonymous:
- There is no personal data to delete or export
- The data cannot be used to identify you
- Deleting the App generates a new random identifier if you reinstall
If you have questions about analytics data, contact us at [email protected].
Children's Privacy
The App is not directed at children under 13. We do not knowingly collect information from children. The App contains no accounts, advertising, or social features. The App offers a one-time in-app purchase to unlock unlimited sessions; this purchase is processed entirely by Apple and we do not collect any payment information.
Changes to This Policy
We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated "Last Updated" date. Continued use of the App after changes constitutes acceptance of the updated policy.
Contact Us
If you have questions about this Privacy Policy or the App's privacy practices:
Email: [email protected]
Developer: MHJ Apps
Apple App Store Requirements
This App complies with Apple's App Store Guidelines regarding:
- HealthKit data usage and privacy (Section 5.1.3)
- Privacy nutrition labels accuracy
The App's privacy practices are accurately represented in the App Store privacy nutrition labels.