# Know Snow vs UV Index

The clearest difference is rating: UV Index at 4.6 against Know Snow's 2.5. UV Index also leads on review sentiment (76% vs 36%) and update cadence (every 5 days vs every 4 weeks). Know Snow's advantage is in-app purchases (none vs 24) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. UV Index sells 24 in-app purchases, starting at $0.99 per 7 days. Know Snow asks for nothing beyond the download.

UV Index holds the better App Store score, 4.6 against 2.5. That said, the two scores are not equally well evidenced: UV Index has 1.1K ratings behind it against 102, so its average is the more settled of the two. Written reviews point the same way: 36% of Know Snow's written reviews are positive against 76% of UV Index's.

Know Snow ships an update every 4 weeks, UV Index every 5 days. The most recent releases landed on October 21, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Know Snow | UV Index |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (102 ratings)](https://appshunter.io/ios/app/know-snow/id776977927/reviews) | **[4.6 (1.1K ratings)](https://appshunter.io/ios/app/uv-index-sunwise/id6449424793/reviews)** |
| Number of ratings | 102 | **1.1K** |
| Positive reviews | 36.2% of reviews | **75.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 weeks | **Every 5 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 36 MB | 87 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bill Pecoriello](https://appshunter.io/developer/776977930) | [Alcaeus Development AB](https://appshunter.io/developer/1638202818) |

## What reviewers say

### Know Snow

[App page](https://appshunter.io/ios/app/know-snow/id776977927)

This app helps you determine the likelihood of a snow day for schools in Fairfield County, CT. It provides easy-to-understand weather forecasts and predictions to help you plan for the next day.

**Highlights:** Snow day probability, School closing predictions, Weather forecasts, Town-specific predictions, Plan ahead tool

**In-app purchases:** none

**What reviewers like**

- 👍 Useful for school closings
- 👍 Accurate weather predictions
- 👍 Personalized weather app
- 👍 Great for Connecticut users
- 👍 Easy and helpful to use

**What reviewers complain about**

- 👎 Limited to specific areas
- 👎 Not for all states
- 👎 School selection is restrictive
- 👎 Misleading title/description
- 👎 Frustrating school search

**Reported bugs**

- App only works for Connecticut
- App does not have user's school
- App is not useful outside of CT
- App has limited info for selected schools
- App has few options/cities to look at

**Requested features**

- Include more school districts
- Expand to other states/areas
- Allow searching for own school
- Clarify app's geographic limitation
- Add more counties


### UV Index

[App page](https://appshunter.io/ios/app/uv-index-sunwise/id6449424793)

Track real-time UV levels and plan your sun exposure safely. Get personalized tips, check forecasts, and estimate your safe sun time. Stay informed and protected from harmful UV rays.

**Highlights:** Real-time UV Index, 10-Day UV Forecast, Global UV Search, Sunburn Timer, Skin Type Recommendations, Widgets

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

**In-app purchases (24)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UV Index Pro Weekly | $0.99 | per 7 days |
| UV Index Pro Weekly | $1.99 | per 7 days |
| UV Index Pro Weekly | $1.99 | per 7 days |
| UV Index Pro Monthly | $1.99 | per month |
| UV Index Pro Weekly | $1.99 | per 7 days |
| UV Index Pro Monthly | $2.99 | per month |
| UV Index Pro Monthly | $2.99 | per month |
| SunWise Pro - Weekly | $3.99 | per 7 days |
| SunWise Pro - Weekly | $3.99 | per 7 days |
| UV Index Pro Weekly | $3.99 | per 7 days |
| UV Index Pro Monthly | $4.99 | per month |
| UV Index Pro Yearly | $9.99 | per year |
| UV Index Pro Yearly | $9.99 | per year |
| UV Index Pro Yearly | $9.99 | per year |
| UV Index Pro Yearly | $14.99 | per year |
| SunWise Pro - Yearly | $19.99 | per year |
| UV Index Pro Yearly | $19.99 | per year |
| UV Index Pro Yearly | $24.99 | per year |
| SunWise Pro - Yearly | $29.99 | per year |
| UV Index Pro Yearly | $29.99 | per year |
| UV Index Pro Yearly | $29.99 | per year |
| UV Index Pro Yearly | $39.99 | per year |
| UV Index Pro Lifetime | $3.99 | one-time |
| UV Index Pro Lifetime | $39.99 | one-time |

**What reviewers like**

- 👍 Reliable for tanning
- 📊 Tracks weather and UV exposure
- 💡 Personalized tanning tips
- 🔍 Accurate UV index

**What reviewers complain about**

- 💰 Many features require paid subscription
- 🔒 Limited access to full functionality without paying

**Reported bugs**

- App sometimes doesn't work as expected
- Buttons and features not always responsive

**Requested features**

- Add hourly UV exposure indicators
- Include more features in free version
- Improve widget functionality


## Frequently asked questions

### Is Know Snow free?

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

### Is UV Index free?

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

### Which has better reviews, Know Snow or UV Index?

UV Index is rated higher. Know Snow averages 2.5 out of 5 from 102 ratings, while UV Index averages 4.6 from 1.1K ratings.

### Do Know Snow or UV Index have ads?

UV Index shows ads; Know Snow does not.

### Which is updated more often, Know Snow or UV Index?

Know Snow ships an update every 4 weeks, and UV Index every 5 days. Most recently, Know Snow was updated on October 21, 2026 and UV Index on October 25, 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.*