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Setting up your CoreTell account is simple:

• Download CoreTell from the App Store
• Open the app and tap "Get Started"
• Enter your email address and create a secure password
• Complete the optional health profile for personalized insights
• Grant necessary permissions for HealthKit integration (recommended)

To log your first symptom:

• Tap the "+" button on the main dashboard
• Select "Log Symptom" from the menu
• Choose the symptom type from our comprehensive list
• Rate the severity on a scale of 1-10
• Add duration, notes, and optional photos
• Save your entry to start tracking patterns

Connecting HealthKit enhances your health tracking:

• Go to Settings → Health Data Integration
• Tap "Connect to Apple Health"
• Review the data types CoreTell wants to access
• Toggle on the categories you want to share
• Tap "Allow" to complete the connection

CoreTell can read: heart rate, steps, sleep data, weight, blood pressure, and more. We never write data to HealthKit without your explicit permission.

Managing your symptom entries is easy:

• Go to the "History" tab in the main navigation
• Find the entry you want to modify
• Tap on the entry to open details
• Use "Edit" to modify details or "Delete" to remove
• Confirm your changes to update the entry

Note: Editing or deleting entries may affect your trend analysis and AI insights as they rely on consistent data patterns.

Yes! Photos can provide valuable visual documentation:

• When logging a symptom, tap "Add Photo"
• Choose to take a new photo or select from your library
• Add up to 3 photos per symptom entry
• Photos are encrypted and stored securely on your device

Body mapping helps you pinpoint symptom locations:

• When logging a symptom, tap "Body Map"
• Select the affected area on the interactive body diagram
• Tap multiple areas if the symptom affects several locations
• The map data is included in your trend analysis

Body mapping helps identify patterns like migrating pain or recurring symptoms in specific areas, which can be valuable information for healthcare providers.

If HealthKit data isn't syncing, try these steps:

• Check that HealthKit permissions are enabled in Settings → Privacy & Security → Health
• Ensure CoreTell has permission for the specific data types
• Force close and reopen the CoreTell app
• Check that your Apple Health app has recent data
• Try disconnecting and reconnecting HealthKit in CoreTell settings

Syncing can take a few minutes for large amounts of historical data. Check the "Last Sync" timestamp in Settings → Health Data Integration.

Absolutely! Manual entry is available for all health metrics:

• Go to the "Data" tab and tap "Add Entry"
• Select the type of measurement (blood pressure, weight, etc.)
• Enter the values and timestamp
• Add any relevant notes
• Save to include in your health tracking

Data accuracy depends on several factors:

• HealthKit Data: Accuracy depends on your source devices (Apple Watch, iPhone, connected scales, etc.)
• Manual Entries: Accuracy depends on careful input and proper measurement techniques
• Symptom Tracking: Subjective data based on your personal assessment

CoreTell displays data exactly as received from HealthKit or as you enter it. We recommend using calibrated devices and following consistent measurement practices for the most reliable trends.

CoreTell's AI analyzes your health data to provide insights:

• Pattern recognition identifies correlations between symptoms, activities, and health metrics
• Machine learning models trained on anonymized health data detect meaningful trends
• Recommendations are personalized based on your specific health profile
• All insights include confidence scores and transparent reasoning

Our AI looks for patterns like: symptom triggers, sleep quality impacts, activity level correlations, and timing patterns that might not be obvious from individual data points.

Logic chains show the transparent reasoning behind AI insights:

• Each insight displays the data points used in the analysis
• Step-by-step reasoning shows how conclusions were reached
• Confidence levels indicate the strength of correlations found
• You can see which patterns influenced each recommendation

Confidence scores indicate how reliable an AI insight is:

• High Confidence (80-100%): Strong statistical correlation with substantial data
• Medium Confidence (60-79%): Moderate correlation worth monitoring
• Low Confidence (40-59%): Weak correlation requiring more data
• Very Low Confidence (<40%): Insufficient data for reliable insights

Higher confidence scores develop over time as you log more data. Generally, insights become more reliable after 2-4 weeks of consistent tracking.

Premium unlocks advanced health tracking capabilities:

• Extended Analytics: 6-month and 1-year trend analysis
• PDF Reports: Comprehensive health reports for healthcare providers
• Advanced AI Insights: Deeper pattern analysis and predictive insights
• Priority Support: Faster response times and phone support
• Unlimited Tracking: No limits on symptom entries or data storage
• Export Features: CSV data export for personal records

Premium is available for $4.99/month or $39.99/year (save 33%).

Subscription management is handled through the App Store:

• Go to Settings → Apple ID → Subscriptions on your device
• Find CoreTell in your active subscriptions
• Change plans, cancel, or modify billing settings
• Changes take effect at the next billing cycle

You can also view subscription status and billing history in CoreTell Settings → Account → Subscription Info.

If Premium features aren't working after purchase:

• Go to CoreTell Settings → Account
• Tap "Restore Purchases"
• Wait for confirmation of restoration
• Force close and reopen the app

If issues persist, ensure you're signed in with the same Apple ID used for the original purchase, and that your subscription is active in App Store settings.

CoreTell uses multiple layers of security to protect your health data:

• End-to-End Encryption: All data is encrypted on your device before transmission
• Local Processing: AI analysis happens on your device when possible
• Secure Storage: Cloud data uses AES-256 encryption with unique keys
• Zero-Knowledge: We cannot access your raw health data without your credentials
• Biometric Protection: Optional Face ID/Touch ID app lock

Your health data never leaves your control and is never sold or shared with third parties without explicit consent.

Yes, CoreTell makes it easy to share relevant health information:

• PDF Reports: Generate comprehensive reports for appointments
• Selective Sharing: Choose specific data ranges and types to include
• Secure Export: Data is exported in standard medical formats
• No Automatic Sharing: All sharing requires your explicit action

You have full control over your data:

• Delete Specific Data: Remove individual entries from the History tab
• Clear All Data: Settings → Privacy → Clear All Health Data
• Delete Account: Settings → Account → Delete Account
• Export First: Download your data before deletion if needed

Account deletion is permanent and cannot be undone. All data is permanently removed from our servers within 30 days.

Try these troubleshooting steps in order:

• Force close the app and restart it
• Restart your device
• Check for app updates in the App Store
• Ensure you have at least 1GB of free storage
• Check your internet connection stability
• If issues persist, reinstall the app (your cloud data will be restored)

If crashes continue after reinstalling, please note when they occur (specific actions, times) as this helps us identify the issue.

Login issues can usually be resolved with these steps:

• Verify you're using the correct email address
• Try the "Forgot Password" option to reset your password
• Check that your device has a stable internet connection
• Ensure CoreTell has permission to access the internet
• Clear the app cache by force closing and reopening

If you created your account with Sign in with Apple, make sure you're using the same Apple ID and that Sign in with Apple is working properly.

Insight accuracy depends on data quality and quantity:

• Check Data Completeness: Ensure you have at least 2 weeks of consistent tracking
• Verify Data Accuracy: Review recent entries for errors
• Update Manually: Pull down on the Insights tab to refresh
• Review Settings: Check that all desired data sources are connected

AI insights improve over time as more data becomes available. Significant changes in routines or health status may temporarily affect insight accuracy.