# VBS UV vs I

The clearest difference is update cadence: I at every 4 days against VBS UV's every 6 weeks. I also leads on iOS requirement (15.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

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

VBS UV ships an update every 6 weeks, I every 4 days. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | VBS UV | I |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/vbs-uv-index/id1179934658/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 4 days** |
| Monetization | Free | — |
| Size | 6 MB | 48 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Mark Spaulding](https://appshunter.io/developer/1166710709) | [Ronald Avila](https://appshunter.io/developer/1592838539) |

## What reviewers say

### VBS UV

[App page](https://appshunter.io/ios/app/vbs-uv-index/id1179934658)

This app provides UV-Index forecasts to help manage sun exposure. It offers a simple interface for users to check daily UV levels. More information about the VBS model is available online.

**Highlights:** UV-Index forecasts, Sun exposure management, Simple user interface, VBS model information link

**Features:** macOS Compatibility

**In-app purchases:** none


### I

[App page](https://appshunter.io/ios/app/i-charj/id6760969449)

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

**In-app purchases:** none


## Frequently asked questions

### Is VBS UV free?

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

### Is I free?

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

### Do VBS UV or I have ads?

Neither VBS UV nor I shows ads.

### Which is updated more often, VBS UV or I?

VBS UV ships an update every 6 weeks, and I every 4 days. Most recently, VBS UV was updated on November 2, 2026 and I on November 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*