# Wrist Temperature Tracker vs Sun Exposure

The clearest difference is rating: Sun Exposure at 4.5 against Wrist Temperature Tracker's 3.4. Sun Exposure also leads on review sentiment (46% vs 28%). Wrist Temperature Tracker's advantage is ratings volume (128 vs 41). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Wrist Temperature Tracker sells 3 in-app purchases, starting at $1.99 per month and Sun Exposure sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Sun Exposure holds the better App Store score, 4.5 against 3.4. Both are backed by a comparable volume of ratings — 128 and 41 respectively. Written reviews point the same way: 28% of Wrist Temperature Tracker's written reviews are positive against 46% of Sun Exposure's.

Wrist Temperature Tracker ships an update every 11 days, Sun Exposure every 3 weeks. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Wrist Temperature Tracker | Sun Exposure |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (128 ratings)](https://appshunter.io/ios/app/wrist-temperature-tracker/id6443753237/reviews) | **[4.5 (41 ratings)](https://appshunter.io/ios/app/sun-exposure-time-in-daylight/id6463570196/reviews)** |
| Number of ratings | **128** | 41 |
| Positive reviews | 28.0% of reviews | **46.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | Freemium |
| Size | 5 MB | 192 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone, Apple Watch | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Bernhard Hering](https://appshunter.io/developer/327542085) | [Adam Oxner](https://appshunter.io/developer/862419140) |

## What reviewers say

### Wrist Temperature Tracker

[App page](https://appshunter.io/ios/app/wrist-temperature-tracker/id6443753237)

Visualize your Apple Watch's overnight wrist temperature readings as historical data and convenient widgets. Understand your temperature trends over time, with options for monthly, yearly, and comparative views. Requires a compatible Apple Watch and proper sleep tracking setup.

**Highlights:** Nightly reading history (7, 30, 90 days, 1 year), Monthly calendar with relative color coding, Cycle comparison with period start data, Widgets and complications for quick access, Customizable reading notifications, Health data diagnostics

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| Yearly Subscription | $11.99 | per year |
| Unlock Wrist Temperature | $79.99 | one-time |


### Sun Exposure

[App page](https://appshunter.io/ios/app/sun-exposure-time-in-daylight/id6463570196)

This app helps you safely enjoy sunlight by tracking your exposure, estimating Vitamin D production, and monitoring burn time. It offers personalized guidance for various goals, from protection to building a healthy tan, and can integrate with Apple Watch for automatic tracking.

**Highlights:** Daily sun tracking, Vitamin D estimation, Burn time monitoring, Personalized sun guidance, Automatic Apple Watch tracking, Exposure notifications, UV index forecasts

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sun Exposure Pro | $1.99 | per month |
| Sun Exposure Pro | $11.99 | per year |
| Customize Settings | $4.99 | one-time |


## Frequently asked questions

### Is Wrist Temperature Tracker free?

Wrist Temperature Tracker is free to download, with in-app purchases available.

### Is Sun Exposure free?

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

### Which has better reviews, Wrist Temperature Tracker or Sun Exposure?

Sun Exposure is rated higher. Wrist Temperature Tracker averages 3.4 out of 5 from 128 ratings, while Sun Exposure averages 4.5 from 41 ratings.

### Do Wrist Temperature Tracker or Sun Exposure have ads?

Neither Wrist Temperature Tracker nor Sun Exposure shows ads.

### Which is updated more often, Wrist Temperature Tracker or Sun Exposure?

Wrist Temperature Tracker ships an update every 11 days, and Sun Exposure every 3 weeks. Most recently, Wrist Temperature Tracker was updated on November 7, 2026 and Sun Exposure on November 3, 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.*