SolGlow: Vitamin D Tracker

SolGlow: Vitamin D Tracker

Automatic Sunlight & UV Index

2 ratings
1 review
$3.99 Free
In-App Purchases

Price history


Details

  • Released
  • Updated

Features

SolGlow: Vitamin D Tracker video #1 for iPhone
SolGlow: Vitamin D Tracker screenshot #2 for iPhone
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SolGlow: Vitamin D Tracker screenshot #7 for iPhone
SolGlow: Vitamin D Tracker screenshot #8 for iPhone
SolGlow: Vitamin D Tracker screenshot #9 for iPhone
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About

This app automatically estimates your daily vitamin D intake based on sunlight exposure, skin type, and location. It provides real-time UV index, burn-safe time remaining, and integrates with Apple Watch for effortless tracking. Features include winter mode, supplement check-ins, and advanced planning tools for Pro users.

Automatic vitamin D estimation
Live UV index and IU-per-minute rate
Burn-safe time remaining with alerts
Winter Mode for low-sun periods
Supplement check-in
7-day UV forecast (Pro)
Trip Planner for jet lag (Pro)
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What's New in SolGlow

1.8

August 5, 2026

Choose how you pay. SolGlow Pro now comes as a yearly plan alongside the one-time unlock. A NEW WAY TO GET PRO SolGlow Pro is now $9.99 per year, auto-renewing until you cancel — or stay with the one-time $19.99 unlock, yours forever with Family Sharing. Same features either way. If you already own the lifetime unlock, nothing changes for you: you keep it, and you'll never see a renewal prompt. A NEW LOOK ON LAUNCH A redesigned app icon and an animated opening built from SolGlow's own sun mark — the same mark now used across every widget, the Lock Screen, and the Apple Watch instead of a generic system symbol. As always: no accounts, no analytics, no ads. Your data stays on your device (and your own iCloud only if you enable backup). Estimates are educational, not a diagnosis — always consult your clinician about vitamin D and blood testing.

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In-App Purchases

$7.99

SolGlow Pro

Unlock every feature forever. One-time purchase.

User reviews

Needs a tutorial

Update after first use: I sat out in the sun at “prime time” for 47 minutes. I turned on the tracker- it told me recording. When done, I turned it off and checked to see how much vitamin D I got and it logged zero. Useless.

This needs a tutorial. Granted I just downloaded but right off the bat, I don’t see where to find best time to be in the sun, The beginning tracking button should be right at the top- big and in your face, not a little tiny pencil under start tracking that’s needs to be scrolled down to. Not sure if I’ll keep this…
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FAQ

What is SolGlow?

SolGlow is a health and fitness app that automatically estimates your daily vitamin D intake based on sunlight exposure, skin type, age, and location. It provides real-time UV index, burn-safe time remaining, and integrates with your Apple Watch for effortless tracking.

How does SolGlow estimate vitamin D?

SolGlow uses named, peer-reviewed models like Holick and Heaney/Veith, factoring in your Time in Daylight (from Apple Watch), skin type, outfit, age, and your location's sun angle to estimate vitamin D produced in IU.

Does SolGlow have ads?

No, SolGlow is ad-free. The app is designed with privacy in mind and does not contain advertisements.

What are the Pro features in SolGlow?

SolGlow Pro offers advanced features like Live Activity on your Lock Screen, sunscreen reapply timers, editable history, a shareable weekly recap, the Apple Watch app, a 7-day UV forecast, an annual sun plan, and a Trip Planner for jet lag.

How much does SolGlow Pro cost?

SolGlow Pro is available as a subscription for $9.99 per year, auto-renewing until canceled, or as a one-time purchase for $19.99. All features are free for a 14-day trial period.

What devices does SolGlow support?

SolGlow is available on iPhone, iPad, and Apple Watch, with support for widgets on StandBy, Lock Screen, and Home Screen.

How often is SolGlow updated?

The latest version of SolGlow is 1.8, which was last updated on August 5, 2026. Updates typically occur to improve features and reliability.

Is SolGlow suitable for children?

SolGlow has an age rating of 12+, indicating it is appropriate for users aged 12 and older. It helps users manage sun exposure and vitamin D intake.