Helia: Vitamin D Tracker
UV index, daylight & burn risk
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Know your vitamin D from sun and supplements, when it's safe to go out, and how close you are to sunburn — with a live blood-level estimate. On-device and private.
Helia makes the invisible chemistry of sunlight visible. It estimates the vitamin D you make from the sun and take from supplements and food, fills a daily target like a budget, and tells you the smartest, safest way to top it up.
YOUR DAY, IN ONE NUMBER
• Today's vitamin D vs. your target, split by sun and supplements
• A live sky background that follows the time of day and real weather
• An hourly UV curve and a sun-path arc
GET SUN SAFELY
• A live sun-session timer with a real-time IU ticker and a sunburn (MED) gauge
• Haptic milestones and a warning before you burn
• The best window to get sun today — or when to just take a supplement instead
• A Live Activity and Dynamic Island that track the session while you're outside
CONNECTED
• Reads time-in-daylight and outdoor workouts from Apple Health; writes your doses back
• Home Screen and Lock Screen widgets for vitamin D, UV index and time in daylight
• An Apple Watch app with three complications
• Siri and Shortcuts: log a dose, start a sun session, or ask where you stand
• Optional iCloud sync across your devices
HELIA PRO
• Month and quarter history
• Your modelled blood 25-OH-D level, calibrated to lab results you enter
• Watch auto-tracking
• Custom alerts and Share Studio — turn your sunlight into a card or a video
PRIVATE BY DESIGN
Your records stay on device with optional iCloud sync; Health data is read live and never uploaded; location is coarse and never stored precisely. No ads, no trackers. Free to use, with an optional Pro upgrade.
Helia provides estimates, not medical advice, and is not a medical device. Consult a qualified clinician.
Terms of Use: https://pawan.info/legal/helia/terms.html
Privacy Policy: https://pawan.info/legal/helia/privacy.html
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Pawanpreet Singh, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Pawanpreet Singh
- Size
- 22 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later. - Apple Watch
Requires watchOS 11.0 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Helia Pro (Annual) $9.99
- Helia Pro Lifetime $24.99
- Helia Pro (Monthly) $1.99
- Copyright
- © 2026 Pawanpreet Singh
