System Architecture

Platform

Web application (Next.js 15.5.4), iOS and Android mobile apps in development

Voice Interface

Natural language processing for 2-3 minute daily check-ins, supporting conversational health tracking

Session Duration

2-3 minutes per day (significantly lower friction than traditional health tracking apps)

Data Privacy

End-to-end encryption, GDPR and CCPA compliant, user-controlled data deletion

Five Pillar Longevity Framework

Cadura's approach is based on the Danish Twin Study finding that 70-80% of longevity is determined by lifestyle factors, not genetics. The system tracks five interconnected health domains:

Pricing Tiers

Note: All plans include the same core features. Credits determine number of voice coaching sessions per month. Pricing reflects commitment to making longevity optimization accessible.

Evidence-Based Approach

Cadura's methodology is grounded in peer-reviewed longevity research:

• •Danish Twin Study: 70-80% of longevity determined by lifestyle, not genetics (Herskind et al., 1996)
• •Blue Zones Research: Identification of five lifestyle commonalities among world's longest-lived populations (Buettner, 2012)
• •Dr. Peter Attia's Framework: Four pillars of longevity medicine (exercise, nutrition, sleep, emotional health)
• •Huberman Lab Protocols: Circadian optimization, stress management, habit formation science

User Flow

1. Daily Check-in Initiation
   └─> User opens Cadura app
   └─> Voice session begins (2-3 minutes)

2. Conversational Health Assessment
   └─> AI asks about sleep quality
   └─> User responds naturally via voice
   └─> AI adapts questions based on patterns
   └─> Covers all 5 pillars organically

3. Personalized Guidance
   └─> AI analyzes response patterns
   └─> Provides contextual recommendations
   └─> Suggests one actionable improvement
   └─> Tracks progress over time

4. Long-term Optimization
   └─> Pattern recognition over weeks/months
   └─> Behavioral insights emerge
   └─> Sustainable habit formation
   └─> Measurable health improvements

Performance & Accessibility

Response Time:

Voice processing and AI response generated in real-time

Accessibility:

Voice-first interface removes barriers for users with mobility limitations

Language Support:

Currently English, expanding to additional languages

Core Web Vitals:

LCP optimized with fetchPriority="high", CLS prevented with aspect-ratio, mobile-first responsive design