
About
Optimize your sun exposure for vitamin D production and safe tanning. This app calculates optimal sun times based on your skin type, helping you maximize vitamin D while preventing sunburn with personalized protocols and smart alerts.
What's New in UVSiesta
3.2.1
July 14, 2026
minor bug fixes and improvements
Subscription plans
Yearly Subscription
Yearly Subscription
User reviews
FAQ
What is UVSiesta's primary function?
UVSiesta helps you optimize your sun exposure for both vitamin D production and safe tanning. It calculates personalized recommendations based on your Fitzpatrick skin type, UV index, and other factors to maximize benefits while minimizing risks like sunburn.
How does UVSiesta track vitamin D?
UVSiesta calculates your estimated vitamin D production in International Units (IU) in real-time. It considers your skin type, age, body surface area exposed, and the current UV index to provide accurate estimates.
Does UVSiesta offer safe tanning protocols?
Yes, UVSiesta provides progressive tanning sessions with Beginner, Intermediate, and Advanced protocols. It offers customized timers and burn prevention alerts tailored to your skin type to help you build a tan gradually and safely.
What is the Fitzpatrick skin type assessment in UVSiesta?
The Fitzpatrick skin type assessment helps UVSiesta determine your skin's sensitivity to the sun. It includes a complete assessment (I-VI), custom burn time predictions, personalized SPF recommendations, and safe exposure limits for your specific skin type.
What are the premium features in UVSiesta?
Premium features include unlimited worldwide location tracking, unlocking all tanning experience levels, an ad-free experience, and access to a 7-day free trial. These features enhance the app's global usability and personalization.
Is UVSiesta suitable for all skin types?
Yes, UVSiesta is designed for all skin types, from I to VI, as defined by the Fitzpatrick scale. It provides personalized recommendations and safety limits tailored to each skin type's unique characteristics and sun sensitivity.
Does UVSiesta have ads?
UVSiesta offers an ad-free experience for its premium users. The free version of the app does not contain advertisements.
What is the update frequency for UVSiesta?
UVSiesta was last updated on November 20, 2025, indicating active development and maintenance. The latest version is 3.0.4.


