Comparison

Tan timer+ vs Vitamin D™ · UV Index

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Tan timer+

Features
Read full description

This application will allow you to get a beautiful and uniform tan using a unique technique, alternating periods of being in direct sunlight and in the shade. The application has everything to get tanned skin without burns and pigmentation - a description of the technique, recommendations, popular schemes and a cycle timer. You select a tanning scheme based on your preferences, and the application tracks your progress and saves your tanning history. Before using the selected scheme, it is necessary to familiarize yourself with the recommendations posted in the appendix. The application uses illustrations and musical compositions by third-party authors. Information about the authors is posted on the corresponding page in the application. Icons by Icons8. 
Sounds by GregorQuendel.

About

Vitamin D™ · UV Index

This app provides real-time UV index monitoring and personalized sun exposure recommendations to help you safely harness the sun's energy for optimal Vitamin D synthesis. It offers tailored sun protection advisories and customizable alerts for sun safety.

Highlights
  • Real-time UV index forecasting
  • Personalized sun exposure recommendations
  • Sun protection advisories
  • Vitamin D synthesis timer
  • Customizable safety alerts
  • Health monitoring app integration
Features
Read full description

Welcome to Vitamin D™, your bespoke guide to embracing the sun's embrace with intelligence and care. Why just step outside when you can smartly harness the sun's energy? Vitamin D™ is not your average health app. It's a solar concierge at your fingertips. With real-time UV index monitoring and customized sun exposure recommendations, our app orchestrates your outdoor moments to perfectly capture the essence of the sun for optimal Vitamin D synthesis. Shed the veil of guesswork with a comprehensive suite of sun-smart features that don't just inform but also empower. Our app is like a personal sunshine strategist, ensuring your time under the sky is as safe as it is beneficial. ■ Real-Time UV Index Forecasting ■ Personalized Sun Exposure Recommendations ■ Sun Protection Advisories Tailored to Your Skin Type ■ Sun Timer for Vitamin D Synthesis Optimization ■ Customizable Alerts for Sun Safety ■ Integration with Health Monitoring Apps Vitamin D™ is your daybreak of enlightened sun interaction: ■ Engage with the brilliance of Vitamin D™, where each feature is exquisitely designed to align with your personal sun exposure needs. ■ Integrate seamlessly with your daily life, adapting to your schedule, skin type, and sun safety preferences. ■ Rise each day with the assurance that you are nurturing your body with the optimal balance of sunlight, all while minimizing risk and maximizing benefit. For more details on our terms and privacy, please visit: https://vitamind.co/terms https://vitamind.co/privacy Download Vitamin D™ and transform your sun experience. We're more than just an app. We're your partner in smart sun exposure. With Vitamin D™, step into the light with confidence and control.

Screenshots

Tan timer+4 screens
Vitamin D™ · UV Index4 screens

Verdict

The call

The clearest difference is in-app purchases: Tan timer+ at none against Vitamin D™ · UV Index's 6. Tan timer+ also leads on iOS requirement (15.0 vs 17.6). Vitamin D™ · UV Index's advantage is update cadence (every 4 weeks vs every 4 months). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Vitamin D™ · UV Index sells 5 in-app purchases, starting at $2.99 per month. Tan timer+ asks for nothing beyond the download.

UpkeepUpdate frequency

Tan timer+ ships an update every 4 months, Vitamin D™ · UV Index every 4 weeks. The most recent releases landed on October 3, 2026 and October 20, 2026 respectively.

Scorecard3 real differences · 7 level
Tan timer+ versus Vitamin D™ · UV Index: the parameters behind the verdict, then further details
ParameterTan timer+Vitamin D™ · UV Index
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—28.6% of reviews
Number of ratings—1 — better
Update frequencyEvery 4 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better17.6
Further details — not scored
Size15 MB24 MB
Age rating4+4+
DeveloperOlga NovikovaEloi Canals

In-app purchases

None

Tan timer+

No in-app purchases

5 purchases

Vitamin D™ · UV Index

Subscriptions4
  • Vitamin D™ Pro7 Days trial$2.991 Month
  • Vitamin D™ Pro$2.991 Month
  • Vitamin D™ Pro7 Days trial2 variants$19.991 Year
Show 1 more
  • Vitamin D™ Pro$19.991 Year
One-time1
  • Vitamin D™ Pro$49.99

Questions

Is Tan timer+ free?
Tan timer+ is free to download, with no in-app purchases.
Is Vitamin D™ · UV Index free?
Vitamin D™ · UV Index is free to download, with in-app purchases available.
Do Tan timer+ or Vitamin D™ · UV Index have ads?
Neither Tan timer+ nor Vitamin D™ · UV Index shows ads.
Which is updated more often, Tan timer+ or Vitamin D™ · UV Index?
Tan timer+ ships an update every 4 months, and Vitamin D™ · UV Index every 4 weeks. Most recently, Tan timer+ was updated on October 3, 2026 and Vitamin D™ · UV Index on October 20, 2026.

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