DD-420

About DD-420

DD-420 helps veterans track PTSD symptoms and cannabis use side-by-side, entirely on your device.

WHAT IT DOES
- Daily/weekly symptom check-ins across all four PCL-5 clusters (intrusion, avoidance, mood/cognition, arousal)
- Official 20-item PCL-5 assessment with scoring and trend history
- Cannabis session logging — strain, method, dosage, THC/CBD/terpenes, mood before/after
- Strain library with autofill and a terpene-effect insights chart
- Personal trigger tracking with situational context
- Tolerance pattern alerts based on published harm-reduction guidelines
- Tolerance break tracker with goal-based streaks
- Caregiver/VA-ready summary and PDF export — shared only when you choose to
- Daily/weekly reminders
- Home screen widget for one-tap check-ins and session logging

PRIVATE BY DESIGN
Everything is stored locally on your device. No account, no cloud sync, no analytics, no ads, no third-party data sharing. You control every export and share.

NOT A MEDICAL DEVICE
DD-420 is a personal tracking tool, not a diagnostic or treatment device. It does not replace professional medical or mental health care.

CRISIS RESOURCES
If you're in crisis, the app always shows the Veterans Crisis Line (988, press 1) and 911 — never gated behind any feature.

Support development with an optional one-time tip. No subscription, no paywall — every feature is free and unlocked for everyone