Previously the app jumped directly to ResultsScreen when user had
existing data, bypassing the WelcomeScreen entirely. Now returning
users see WelcomeScreen where they can Start and choose to continue
from their last saved run or start fresh.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- 3-slide onboarding: baseline, questions, results
- Replaced welcome screen with onboarding flow
- Tightened uncertainty range from ±40% to ±20%
- Ranges now more precise (e.g., 58-86 vs 40-104 months)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Local-first Flutter app that identifies the single behavioral change
most likely to extend lifespan using hazard-based modeling.
Features:
- Risk engine with hazard ratios from meta-analyses
- 50 countries mapped to 4 mortality groups
- 6 modifiable factors: smoking, alcohol, sleep, activity, driving, work hours
- SQLite local storage (no cloud, no accounts)
- Muted clinical UI theme
- 23 unit tests for risk engine
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
