Sundex: UV Index & Sun Tanning
Vitamin D & Tan Glow Tracker
About
This app helps you manage sun exposure for vitamin D and tanning. It provides real-time UV index, personalized sun windows, and forecasts based on your location and skin type. Make informed decisions for healthier sun interaction.
What's New in Sundex
2.0
September 19, 2025
To provide the best experience in our app, we regularly release updates. In this update, visual improvements have been made. With brand-new Vitamin D and forecast screens, everything is now much clearer and more functional. Skin types are now more diverse and comprehensive.
MoreSubscription plans
UV Index Monthly
Unlock the full experience for one month
Developer apps
FAQ
What is Sundex?
Sundex is a smart sun companion designed to help you make the most of sunlight safely and effectively. It provides real-time UV index tracking, a vitamin D calculator, and guidance on optimal sun exposure times based on your skin type and location.
How does Sundex calculate vitamin D?
Sundex features a vitamin D calculator that estimates your optimal sun time based on current UV conditions, your location, and your skin type. This helps you balance vitamin D production with sun safety.
Can I use Sundex for tanning?
Yes, Sundex offers personalized sun exposure windows for safe and effective tanning. It provides daily and hourly UV forecasts to help you plan your outdoor activities and tanning sessions responsibly.
What skin types does Sundex support?
Sundex includes a skin type analysis feature to offer tailored sun safety tips. This personalization helps users understand their individual sun sensitivity and adjust their exposure accordingly.
Does Sundex have ads?
No, Sundex does not contain advertisements. The app focuses on providing a clean and intuitive user experience without interruptions from ads.
What are the subscription options for Sundex?
Sundex offers several subscription plans, including 'UV Index Weekly' with a 3-day free trial for $4.99/week, a discounted weekly option for $3.99/week, a monthly plan for $12.99/month, and an annual plan for $29.99/year.
On what devices can I use Sundex?
Sundex is available for use on both iPhone and Apple Watch devices. This allows for convenient access to UV index and sun safety information on the go.
How often is Sundex updated?
Sundex was last updated on September 19, 2025, with version 2.0. The app is actively maintained, suggesting regular updates for features and performance improvements.
