# Sun Exposure vs spf.today

Sun Exposure and spf.today both sit at 4.5 stars, but that hides the real split: 89% of spf.today's written reviews are positive against 46% of Sun Exposure's. spf.today also leads on update cadence (every 5 days vs every 3 weeks). Sun Exposure's advantage is device support (3 vs 1). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Sun Exposure sells 3 in-app purchases, starting at $1.99 per month and spf.today sells 4 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.5 for Sun Exposure against 4.6 for spf.today. Both are backed by a comparable volume of ratings — 41 and 36 respectively. Written reviews are what separate them: 46% of Sun Exposure's written reviews are positive against 89% of spf.today's.

Sun Exposure ships an update every 3 weeks, spf.today every 5 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Sun Exposure | spf.today |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (41 ratings)](https://appshunter.io/ios/app/sun-exposure-time-in-daylight/id6463570196/reviews) | **[4.6 (36 ratings)](https://appshunter.io/ios/app/spftoday-sunscreen-tracker/id6670567397/reviews)** |
| Number of ratings | **41** | 36 |
| Positive reviews | 46.2% of reviews | **88.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 192 MB | 69 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Adam Oxner](https://appshunter.io/developer/862419140) | [Destro Labs LLC](https://appshunter.io/developer/939914528) |

## What reviewers say

### 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 |


### spf.today

[App page](https://appshunter.io/ios/app/spftoday-sunscreen-tracker/id6670567397)

Effortlessly track sunscreen application and receive smart reapply reminders. Build consistent sun safety habits with progress tracking and discreet notifications, designed to fit seamlessly into your daily routine.

**Highlights:** Log sunscreen in seconds, Track from Lock Screen/Apple Watch, Smart reapply reminders, Build streaks and view history, Subtle, silent notifications, Fits into daily routine

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $3.99 | per month |
| Annual Subscription | $14.99 | per year |
| Annual Subscription | $14.99 | per year |
| Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is Sun Exposure free?

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

### Is spf.today free?

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

### Which has better reviews, Sun Exposure or spf.today?

spf.today is rated higher. Sun Exposure averages 4.5 out of 5 from 41 ratings, while spf.today averages 4.6 from 36 ratings.

### Do Sun Exposure or spf.today have ads?

Neither Sun Exposure nor spf.today shows ads.

### Which is updated more often, Sun Exposure or spf.today?

Sun Exposure ships an update every 3 weeks, and spf.today every 5 days. Most recently, Sun Exposure was updated on November 3, 2026 and spf.today on October 30, 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.*