# UVCs vs NSYS Diagnostics

The clearest difference is update cadence: NSYS Diagnostics at every 3 weeks against UVCs's every 2 months. NSYS Diagnostics also leads on device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

UVCs ships an update every 2 months, NSYS Diagnostics every 3 weeks. The most recent releases landed on October 8, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | UVCs | NSYS Diagnostics |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 56 MB | 15 MB |
| Requires iOS | 13.0 | 13 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Digital Government Committee](https://appshunter.io/developer/1703951086) | [Grigoriy Glazman](https://appshunter.io/developer/1448501053) |

## What reviewers say

### UVCs

[App page](https://appshunter.io/ios/app/uvcs/id6758815591)

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

**In-app purchases:** none


### NSYS Diagnostics

[App page](https://appshunter.io/ios/app/nsys-diagnostics/id6764545220)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is UVCs free?

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

### Is NSYS Diagnostics free?

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

### Do UVCs or NSYS Diagnostics have ads?

Neither UVCs nor NSYS Diagnostics shows ads.

### Which is updated more often, UVCs or NSYS Diagnostics?

UVCs ships an update every 2 months, and NSYS Diagnostics every 3 weeks. Most recently, UVCs was updated on October 8, 2026 and NSYS Diagnostics on October 11, 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.*