Privacy Policy

Account Information

• Email address (required for account creation and communication)
• Full name (for personalized experience)

Health and Fitness Data from Strava

When you connect your Strava account, we collect and permanently store:

• Activity Details: Type, name, duration, distance, and date
• Heart Rate Data: Complete heart rate measurements during activities (when available)
• Performance Metrics: Pace, elevation gain, power data, cadence (when available)
• Basic Profile Information: Name, profile picture, and athlete ID

Technical Information

• Device type and browser information
• App usage analytics (through Vercel Analytics)
• Log data for app functionality and security

MAF Training Analysis

We process your heart rate and activity data to:

• Calculate MAF Zone Compliance: Analyze what percentage of each activity you spent in your optimal MAF heart rate zone
• Generate Progress Charts: Create visual representations of your aerobic fitness development over time
• Track Performance Trends: Monitor improvements in your MAF pace and training consistency
• Provide Training Insights: Help you understand your aerobic development patterns

Data Processing Details

• We analyze your complete heart rate streams to calculate precise MAF compliance percentages
• We store calculated MAF scores permanently to show your progress over time
• We generate weekly and monthly progress metrics from your activity history
• We create charts and visualizations to help you understand your training effectiveness

Other Purposes

• Account Management: Manage your account and provide app functionality
• Communication: Send important updates about your training progress and app improvements
• App Improvement: Use anonymous analytics to enhance app performance

Strava Activity Data

• Permanent Storage: We store your Strava activities, heart rate data, and calculated MAF metrics permanently to provide meaningful progress tracking
• Why Permanent Storage: Long-term storage is essential for tracking your aerobic development, which typically shows improvements over months and years
• When Data is Deleted: All your Strava data is automatically deleted within 48 hours when you revoke access to our app on Strava's "My Apps" page

Important Note About Disconnection

• Disconnecting in our app: If you disconnect Strava from within our app settings, your historical data remains stored to preserve your training history. New activities will stop syncing.
• Revoking access on Strava: If you revoke our app's access on Strava's "My Apps" page, all your data is automatically deleted from our systems within 48 hours.

Account Data

• Email and Name: Kept while your account is active
• Deleted Accounts: All data permanently deleted within 30 days of account deletion

What Happens When You Connect

• You authorize us to access your Strava activities and heart rate data
• We immediately begin importing and analyzing your recent activities
• You can optionally import your historical activities for complete progress tracking

Ongoing Data Sync

• New activities automatically sync from Strava when you upload them
• We continuously calculate MAF scores for activities with heart rate data
• Your progress metrics are updated as new activities are added

Managing Your Strava Connection

• Disconnect in our app: Stops new activity syncing but preserves your historical training data
• Revoke access on Strava: Completely removes all your data from our system within 48 hours
• Full data deletion: To completely remove all data, revoke access on Strava's "My Apps" page