# Mooncast vs UV Index

Mooncast and UV Index both sit at 4.8 stars, but that hides the real split: 91% of Mooncast's written reviews are positive against 21% of UV Index's. Mooncast also leads on in-app purchases (none vs 1) and update cadence (every 11 days vs every 4 months). UV Index's advantage is price ($2.99 vs $3.99). On rating, ads and chart position there is nothing between them.

Mooncast costs $3.99 and UV Index $2.99 up front. UV Index sells 1 one-off in-app purchase. Mooncast asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for Mooncast against 4.9 for UV Index. That said, the two scores are not equally well evidenced: Mooncast has 3.6K ratings behind it against 11, so its average is the more settled of the two. Written reviews are what separate them: 91% of Mooncast's written reviews are positive against 21% of UV Index's.

Mooncast ships an update every 11 days, UV Index every 4 months. The most recent releases landed on November 6, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Mooncast | UV Index |
| --- | --- | --- |
| Price | $3.99 | **$2.99** |
| Rating | [4.8 (3.6K ratings)](https://appshunter.io/ios/app/mooncast/id473165402/reviews) | **[4.9 (11 ratings)](https://appshunter.io/ios/app/uv-index-safe-sun/id879946294/reviews)** |
| Number of ratings | **3.6K** | 11 |
| Positive reviews | **91.2% of reviews** | 21.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 4 months |
| Monetization | **Free** | Paid |
| Best chart rank | #88 | **#42** |
| Size | 64 MB | 6 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | **iPhone, iPad, Mac, Apple TV, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mathieu Routhier](https://appshunter.io/developer/369283978) | [LionsApp di Nallbati Elton](https://appshunter.io/developer/432915499) |

## What reviewers say

### Mooncast

[App page](https://appshunter.io/ios/app/mooncast/id473165402)

**Currently charting:** #88 Top Paid · Weather (US App Store)

Discover the current phase of the moon with stunning visuals and precise data. Explore the lunar cycle, track upcoming full and new moons, and access historical and future lunar information. This app offers a beautiful and accurate way to stay informed about celestial events.

**Highlights:** High-fidelity moon phase visuals, Interactive lunar timeline, Accurate full and new moon predictions, Long-term lunar almanac, Precise peak moon timestamps, Smart lunar event reminders, Customizable visual themes

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Simple, informative, clear and beautiful
- 👍 Beautiful and centering app
- 👍 Charming way to be aware of the moon phases
- 👍 Accurate and easy to use
- 👍 Useful with a new moon and full moon reminder

**What reviewers complain about**

- ❌ Pointless except for the pretty picture
- ❌ Complication on Watch doesn't show moon phase
- ❌ Needs localization for southern hemisphere
- ❌ Disappointing, not worth the money

**Reported bugs**

- 🐛 Alarms don't always work
- 🐛 Incompatible with older devices

**Requested features**

- 💡 Show what zodiac sign the moon is in
- 💡 Add moon rise and set times
- 💡 Allow setting custom reminder times
- 💡 Add a monthly calendar view


### UV Index

[App page](https://appshunter.io/ios/app/uv-index-safe-sun/id879946294)

**Currently charting:** #42 Top Paid · Weather (US App Store)

This app provides real-time UV radiation levels based on your location. It offers recommendations for sun protection and suggests appropriate clothing to safeguard your skin and eyes from harmful solar ultraviolet radiation.

**Highlights:** Real-time UV radiation measurement, Location-based UV index, Sun protection recommendations, Recommended clothing indicator, Search for cities, Save favorite locations

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UV Pro | $2.99 | one-time |


## Frequently asked questions

### Is Mooncast free?

Mooncast costs $3.99, with no in-app purchases.

### Is UV Index free?

UV Index costs $2.99, and also offers in-app purchases.

### Which has better reviews, Mooncast or UV Index?

UV Index is rated higher. Mooncast averages 4.8 out of 5 from 3.6K ratings, while UV Index averages 4.9 from 11 ratings.

### Do Mooncast or UV Index have ads?

Neither Mooncast nor UV Index shows ads.

### Which is updated more often, Mooncast or UV Index?

Mooncast ships an update every 11 days, and UV Index every 4 months. Most recently, Mooncast was updated on November 6, 2026 and UV Index on November 1, 2026.

### Which is more popular, Mooncast or UV Index?

Mooncast currently peaks at #88 in the App Store charts, and UV Index at #42. Chart position reflects recent download velocity rather than total install base.

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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.*