# Evident - Scientific Self-Tracking App

> Evident is a scientific self-tracking app that uses the Pearson correlation coefficient to uncover hidden connections between your daily habits and your wellbeing.

## What is Evident?

Evident is an iOS app that helps users discover what truly drives their wellbeing through statistical analysis. Unlike traditional health trackers that simply display data, Evident analyzes correlations between tracked variables to provide actionable insights.

## Key Features

- **Personal Studies**: Create and test your own hypotheses (e.g., "Does coffee affect my productivity?")
- **Correlation Analysis**: Uses Pearson correlation coefficient with 5-point minimum for statistical validity
- **Evident Score**: Comprehensive wellbeing score (0-100) based on 4 Health Pillars
- **Flexible Trackables**: Track any habit with 5 formats (Numeric, Boolean, Scale, Choice, Time)
- **Apple HealthKit Integration**: Automatic data import from Apple Health
- **Community Findings**: Learn from anonymized insights discovered by other users

## The 4 Health Pillars

1. **Sleep** (Blue #6CA7FF)
   - Duration, Quality, Consistency
   - Weighted calculation based on sleep research

2. **Activity** (Yellow #F7C85F)
   - Movement (kcal), Exercise (min), Consistency
   - Based on WHO physical activity guidelines

3. **Wellbeing** (Orange #FF9E6B)
   - Mood, Stress, Social Connection, Mindfulness
   - Based on PERMA model of positive psychology

4. **Productivity** (Purple #A882DD)
   - Deep Work, Task Completion, Focus
   - Based on Cal Newport's Deep Work research

## Target Audience

- Data-driven health enthusiasts (25-50 years)
- Quantified Self community members
- Biohackers seeking evidence-based insights
- Anyone curious about cause-and-effect in their daily life

## Privacy

- Privacy-first approach
- Health data stored securely and encrypted
- Never sells data to third parties
- Local processing where possible

## Contact

- Website: https://evidentapp.com
- Support: support@evidentapp.com
- Privacy: privacy@evidentapp.com

## Resources

- FAQ: https://evidentapp.com/faq
- Privacy Policy: https://evidentapp.com/privacy-policy
- Terms of Service: https://evidentapp.com/terms-of-service
- Our Story: https://evidentapp.com/our-story