# Sundog vs Seize Light

The clearest difference is ads: Sundog at none against Seize Light's shown. Sundog also leads on device support (3 vs 1) and iOS requirement (15.1 vs 18.0). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Sundog | Seize Light |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/sundog-sun-exposure-tracker/id6765758203/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | — | Every 2 weeks |
| Monetization | Free | — |
| Size | 29 MB | 35 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [ALAN D NAVARRO LOPEZ](https://appshunter.io/developer/1895892153) | [sebastian totte](https://appshunter.io/developer/1819107580) |

## What reviewers say

### Sundog

[App page](https://appshunter.io/ios/app/sundog-sun-exposure-tracker/id6765758203)

This app provides personalized daily sun exposure schedules based on your skin type, live UV index, and cloud cover. It guides you on optimal times for vitamin D synthesis, circadian rhythm reset, tanning, and sleep optimization, while always keeping your burn limit visible.

**Highlights:** Personalized daily sun schedule, Calibrated to skin type and UV index, Smart timer for exposure duration, Burn limit visibility, Four science-backed sun goals, Daily sun insights and tips, Progress tracker

**Features:** macOS Compatibility

**In-app purchases:** none


### Seize Light

[App page](https://appshunter.io/ios/app/seize-light/id6784576883)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sundog free?

Sundog is free to download, with no in-app purchases.

### Is Seize Light free?

Seize Light is free to download, with no in-app purchases.

### Do Sundog or Seize Light have ads?

Seize Light shows ads; Sundog does not.

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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.*