🔒 Privacy-First Design
MindWhet processes all your health data
on-device. Your cognitive test results, lifestyle
tracking data, and personal insights never leave your iPhone
unless you explicitly choose to sync with iCloud or Apple Health.
Information I Collect
Health Data (Processed On-Device Only)
MindWhet collects and processes the following health-related
information locally on your device:
-
Cognitive Performance Data: Results from memory
tests, Stroop tests, reaction time tests, task switching tests,
and daily self-reports (focus, energy, mood)
-
Sleep Data: Sleep duration, sleep stages (deep,
REM, core), sleep efficiency, interruptions, and manually
entered sleep hours
-
Exercise Data: Workout sessions, exercise
duration, intensity, calories burned, and manually logged
activities
-
Nutrition Data: Food intake, meal templates,
nutritional information from USDA FoodData Central API, and
brain benefit scores
-
Fasting Data: Fasting periods, eating windows,
and intermittent fasting schedules
-
Biomarker Data: Ketone levels, glucose
readings, and other manually entered biomarkers
-
Supplement Data: Supplement intake logs and
timing
-
Goal Data: Personal goals, progress tracking,
and achievements
Apple HealthKit Integration
With your explicit permission, MindWhet integrates with Apple
HealthKit to:
-
Read sleep analysis data, workout data, and other health metrics
-
Write meal logs and exercise sessions back to Apple Health
-
Access biological data like age, sex, weight, and height for BMR
calculations
Important: All HealthKit data remains within
Apple's secure health ecosystem and is subject to Apple's privacy
policies.
Technical Data
I collect minimal technical information to improve app performance
and stability:
- App version and iOS version for compatibility
-
Crash Reports: Anonymized crash data via
Firebase Crashlytics (contains no personal health data, only
technical stack traces)
How I Use Your Information
On-Device Processing
All health data processing occurs locally on your device:
-
Correlation Analysis: Statistical analysis
between lifestyle factors and cognitive metrics using Pearson
correlation coefficients
-
Personalized Insights: Generation of
recommendations and insights based on your unique data patterns
-
Composite Scoring: Principal Component Analysis
(PCA) calculations for cognitive performance scoring
-
Goal Tracking: Progress monitoring and
achievement calculations
External API Usage
MindWhet uses the USDA FoodData Central API for nutritional
information. When you search for foods:
- Only your search query is sent to the USDA API
-
No personal information or consumption data is transmitted
- Nutritional data is processed locally on your device
Data Storage and Security
Local Storage
Your health data is stored locally on your device using:
-
SwiftData: Apple's modern, secure local
database framework
-
iOS Security: Protected by iOS's built-in
encryption and security measures
-
App Sandbox: Data is isolated within MindWhet's
secure app container
iCloud Sync (Optional)
If you enable iCloud sync:
-
Your data is encrypted and synced through Apple's iCloud service
- I cannot access your iCloud data
- Data remains under your Apple ID's control
- You can disable iCloud sync at any time in iOS Settings
Limited Third-Party Services
I use minimal third-party services:
-
Firebase Crashlytics: Only for crash reporting
(no personal data)
-
No Analytics Services: I do not use third-party
analytics that could access your personal data.
All health data analysis and insights are processed locally on
your device.
Data Sharing and Disclosure
I Do Not Sell Your Data
I never sell, rent, or trade your personal health data to third
parties.
Third-Party Services
I use only one third-party service that receives limited technical
data:
-
Firebase Crashlytics (Google): Receives
anonymized crash reports to help us fix app issues. No health
data is shared with this service.
Limited Disclosure
I may only disclose information in these limited circumstances:
-
Legal Requirements: If required by law, court
order, or government regulation
-
Safety: To protect the safety of users or the
public
-
Business Transfer: In the event of a merger or
acquisition (with user notification)
Your Privacy Rights
Data Control
You have complete control over your data:
-
Access: View all your data within the app
-
Export: Export your data through iOS's built-in
sharing features
-
Delete: Delete individual entries or all data
within the app
-
HealthKit Control: Manage HealthKit permissions
in iOS Settings
App Deletion
When you delete MindWhet:
- All locally stored data is permanently removed
- iCloud data can be deleted through iCloud settings
-
HealthKit data remains in Apple Health (under your control)
Children's Privacy
MindWhet is designed for users 17 years and older. I do not
knowingly collect personal information from children under 17. If
I become aware that I have collected personal information from a
child under 17, I will take steps to delete such information.
International Users
MindWhet processes data locally on your device regardless of your
location. For users in the European Union, you have additional
rights under GDPR, including the right to data portability and the
right to be forgotten.
Changes to This Policy
I may update this Privacy Policy to reflect changes in my
practices or for legal reasons. I will notify users of significant
changes through the app or my website. Continued use of MindWhet
after changes constitutes acceptance of the updated policy.
Contact Us
If you have questions about this Privacy Policy or our privacy
practices, please contact us:
I am committed to addressing your privacy concerns and will
respond to inquiries within 30 days.