# Sunbathe vs Vitamin D Window Widget

The clearest difference is in-app purchases: Vitamin D Window Widget at none against Sunbathe's 1. Sunbathe's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 18.0). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. Sunbathe sells 1 in-app purchase, starting at $3.99 per month. Vitamin D Window Widget asks for nothing beyond the download.

Sunbathe ships an update every 3 weeks, Vitamin D Window Widget every 2 weeks. The most recent releases landed on October 7, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Sunbathe | Vitamin D Window Widget |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/vitamin-d-window-widget/id6759223422/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Freemium | **Free** |
| Size | 43 MB | 2 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Julia Alvarez de Eulate Sainz](https://appshunter.io/developer/1662471073) | [Airhopping, SL](https://appshunter.io/developer/1339572434) |

## What reviewers say

### Sunbathe

[App page](https://appshunter.io/ios/app/sunbathe/id6449760948)

This app helps you understand your vitamin D needs and how to get enough through safe sun exposure. It calculates optimal sunning times and duration based on your location to prevent deficiency and related health issues.

**Highlights:** Vitamin D deficiency information, Optimal sun exposure timing, Personalized duration calculations, Location-based recommendations, Health benefit insights

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sunbathe Premium | $3.99 | per month |


### Vitamin D Window Widget

[App page](https://appshunter.io/ios/app/vitamin-d-window-widget/id6759223422)

This app displays the optimal times of day for natural vitamin D production based on your location and the sun's elevation. It offers real-time sun schedules, smart widgets for home screen access, and notifications to help you maximize your sun exposure.

**Highlights:** Real-time sun schedule, Smart widgets, Daily schedule updates, Dynamic Island countdown, Location-based calculations, Offline functionality, Solar-themed design

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Sunbathe free?

Sunbathe is free to download, with in-app purchases available.

### Is Vitamin D Window Widget free?

Vitamin D Window Widget is free to download, with no in-app purchases.

### Do Sunbathe or Vitamin D Window Widget have ads?

Neither Sunbathe nor Vitamin D Window Widget shows ads.

### Which is updated more often, Sunbathe or Vitamin D Window Widget?

Sunbathe ships an update every 3 weeks, and Vitamin D Window Widget every 2 weeks. Most recently, Sunbathe was updated on October 7, 2026 and Vitamin D Window Widget on October 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*