# Luminary vs UV Watch

The clearest difference is update cadence: Luminary at every 3 days against UV Watch's monthly. Luminary also leads on monetization model (free vs freemium). UV Watch's advantage is ratings volume (6 vs 1) and device support (3 vs 1). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Luminary sells 4 one-off in-app purchases and UV Watch sells 2 in-app purchases, starting at $0.99 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 — 5.0 for Luminary against 5.0 for UV Watch. That said, the two scores are not equally well evidenced: UV Watch has 6 ratings behind it against 1, so its average is the more settled of the two.

Luminary ships an update every 3 days, UV Watch monthly. The most recent releases landed on October 21, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Luminary | UV Watch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/luminary-sun-tracker/id6737578148/reviews) | [5.0 (6 ratings)](https://appshunter.io/ios/app/uv-watch/id6742250756/reviews) |
| Number of ratings | 1 | **6** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Monthly |
| Monetization | **Free** | Freemium |
| Size | 6 MB | 56 MB |
| Requires iOS | 17.0 | **14.0.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jonathan Peacher](https://appshunter.io/developer/1550370581) | [Elizabeth Johnson](https://appshunter.io/developer/1797563011) |

## What reviewers say

### Luminary

[App page](https://appshunter.io/ios/app/luminary-sun-tracker/id6737578148)

Track the sun's position and predict solar and photography events with this offline app. It provides detailed information on sunrise, sunset, twilight phases, and solstices. Ideal for outdoor enthusiasts and photographers.

**Highlights:** Live Azimuth & Altitude, Detailed Solar Events, Photography Event Timings, Seasonal Solstice Information, Offline Functionality, Dark Mode Support

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Large Tip | $4.99 | one-time |
| Giant Tip | $9.99 | one-time |


### UV Watch

[App page](https://appshunter.io/ios/app/uv-watch/id6742250756)

This app provides real-time UV index tracking based on your location, offering personalized sun safety recommendations and proactive alerts for dangerous UV levels. Plan outdoor activities with confidence and protect your skin from sunburn and long-term damage.

**Highlights:** Real-time UV index tracking, Personalized protection recommendations, 3-day UV forecast, Global UV search, Smart sunscreen reminders, Proactive UV alerts

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |
| Annual Subscription | $9.99 | per year |


## Frequently asked questions

### Is Luminary free?

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

### Is UV Watch free?

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

### Which has better reviews, Luminary or UV Watch?

Luminary and UV Watch are both rated 5.0 out of 5 on the App Store, from 1 and 6 ratings respectively.

### Do Luminary or UV Watch have ads?

Neither Luminary nor UV Watch shows ads.

### Which is updated more often, Luminary or UV Watch?

Luminary ships an update every 3 days, and UV Watch monthly. Most recently, Luminary was updated on October 21, 2026 and UV Watch on October 23, 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.*