# Sunny: UV Index & SPF — Avoid Sunburn, Track Vitamin D

> Avoid Sunburn, Track Vitamin D (iPhone/iPad app by Thomas Brandstaetter.)

- Source: https://appshunter.io/ios/app/sunny-uv-index-and-spf/id6760179060 (this page in markdown: same URL + `.md`)
- Developer: [Thomas Brandstaetter](https://appshunter.io/developer/1000220817)
- Category: Health & Fitness, Weather
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 51 MB
- Languages: American English, Danish, Dutch, Finnish, French (France), German (Germany), Italian, Japanese, Korean, Norwegian Bokmål and 5 more
- Released: 2026-05-29
- Data updated: 2026-08-20
- User reviews in markdown: https://appshunter.io/ios/app/sunny-uv-index-and-spf/id6760179060/reviews.md

## What is Sunny?

Sunny helps you understand the UV index and protect your skin. Know how long you can stay outside before sunburn risk increases.
Get personalized time-until-sunburn estimates, SPF guidance, Vitamin D estimates, and Time in Daylight insights.

Features:
• Real-time UV Index for your current location
• 10-day UV and weather forecast
• Personalized sunburn risk based on your skin type, location, UV level, exposed skin, and SPF
• Skin type setup via Apple Health, guided estimation, or manual entry
• SPF guidance for applying, reapplying, and knowing when UV is low enough
• Vitamin D estimates based on UV, skin type, exposed skin, and sunscreen
• Time in Daylight insights with Apple Health when available
• Live Activities for sun exposure sessions on your Lock Screen
• Reliable sun exposure alarms that can alert you before you reach sunburn risk
• Smart notifications for high UV, sunscreen, Vitamin D windows, and active sessions
• Apple Health sync for Time in Daylight, UV exposure, and Vitamin D estimates
• Science-based guidance using UV intensity, skin type, SPF, and exposed skin
• Beautiful, simple UV-aware design that adapts its colors to the current sun intensity
• Accessibility support with Dynamic Type and VoiceOver

Privacy:
• Sensitive health and skin information stays on your device
• No account required


*Sunny is for informational purposes only and does not provide medical advice, diagnosis, or treatment. Always use sunscreen as appropriate and consult a qualified healthcare professional for health-related decisions.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Sunny+ Yearly | $29.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 7 Day Pass | $9.99 | one-time |



## Version history (last 5 releases)

### 1.1.1 — 2026-07-14

Text changes.

If you like Sunny, please consider leaving a rating or review on the App Store. And if you have ideas, feedback, or run into any issues, we’d love to hear from you at support@sunnyuv.app.

### 1.1 — 2026-06-28

This update improves layouts for translated text, polishes Live Activities, and fixes an issue where an exposure alarm could still fire after pausing a sun session.

If you like Sunny, please consider leaving a rating or review on the App Store. And if you have ideas, feedback, or run into any issues, we’d love to hear from you at support@sunnyuv.app.

### 1.0.2 — 2026-06-09

This update fixes an issue where Sunny+ could not be purchased after using a 7 Day Pass.

We’ve also made a few minor UI improvements.

If you like Sunny, please consider leaving a rating or review on the App Store. And if you have ideas, feedback, or run into any issues, we’d love to hear from you at support@sunnyuv.app.

### 1.0.1 — 2026-06-04

Fixed an issue when entering SPF.

If you like Sunny, please leave a rating or review on the App Store. Or if you have any suggestions for new features or improvements, we’d love to hear from you at support@sunnyuv.app.

### 1.0 — 2026-05-29

No release notes.

## More apps by Thomas Brandstaetter

- [Just Detox](https://appshunter.io/ios/app/just-detox/id1003974423)
- [Animated Stickers by Stickit](https://appshunter.io/ios/app/animated-stickers-by-stickit/id1165775132)
- [Fin: Budget Planner App](https://appshunter.io/ios/app/fin-budget-planner-app/id1489698531)

All apps by Thomas Brandstaetter: https://appshunter.io/developer/1000220817

## Related topics

[btech uv](https://appshunter.io/ios/topics/btech-uv)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-20.*