Helix Vault: Symptom Tracker

Helix Vault is a private health tracker built for people who actually need one chronic illness, migraine, or mental health condition and anyone managing a complex set of symptoms or medications.

Everything stays on your device. Your data syncs through your personal iCloud, never through our servers. We can't read it because we never see it.

A HOME SCREEN BUILT FOR YOU
Pick the way you use the app during onboarding chronic illness, migraine, mental health, medication management, wellness, or "show me everything" and Helix Vault tailors what's on the home screen. You can switch lenses anytime in Settings, and every feature stays reachable.

CHRONIC ILLNESS LENS
• Spoon-theory pacing tracker: see today's energy at a glance
• Calm by default: no XP popups, no streak pressure
• Multi-symptom calendar to spot clustering patterns (Helix+)
• Sleep, weather, and HRV correlations, analyzed on-device (Helix+)

MIGRAINE LENS
• One-tap "Log a migraine now" from the home screen
• Trigger detection and weather correlations (Helix+)
• Apple Watch quick-log for the moments you can't reach the phone

MENTAL HEALTH LENS
• Daily mood logging
• Private journal, with on-device sentiment analysis (Helix+)
• Sleep and medication adherence patterns (Helix+)

WHAT EVERY USER GETS
• Full history your entries are never truncated, on any plan
• Symptom, medication, and mood logging
• Spoon-theory pacing tracker
• Doctor's PDF report: a 2-page summary for your next appointment (1 per month free, unlimited with Helix+)
• Apple Health integration for HRV, sleep, and activity
• Apple Watch app for quick logging
• Action Button + Siri shortcuts
• Live Activities for medication reminders
• 16-language localization

HELIX+ PREMIUM
• On-device AI pattern detection, powered by Apple's Foundation Models (iPhone 15 Pro and later)
• AI symptom predictions and flare warnings
• Advanced correlation analysis (sleep, weather, food, mood)
• History date filtering
• Multi-symptom calendar overlays
• Year in Pixels and Year in Review
• Journal AI, plus mood and anxiety check-ins (PHQ-9 / GAD-7)
• Medication effectiveness tracking
• Unlimited Doctor's PDF reports
• iCloud sharing with caregivers
• Environmental and sleep insights

PRIVACY YOU CAN VERIFY
• 100% on-device analysis nothing is sent to us to be processed
• Storage on your device, and in your own iCloud if you turn sync on
• No third-party SDKs
• No analytics, no ads, no tracking
• Open about what we do and don't do with your data

Built by an indie developer who wanted a tracker that didn't treat health data like an asset.

HELIX+ SUBSCRIPTION

Helix+ unlocks AI insights, advanced reports, correlation analysis, and iCloud sharing. Monthly and yearly auto-renewing subscriptions are available, alongside a one-time lifetime purchase.

Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the end of the current period. You can manage or cancel your subscription in Settings → your Apple Account → Subscriptions after purchase.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://docs.google.com/document/d/1W1u4e51n1865YVDsVl4pICp81zkLbIMyiVi7Y7MDYos/edit?usp=sharing