# NFC 4 UHF Converter vs U

The clearest difference is update cadence: U at every 2 days against NFC 4 UHF Converter's every 2 months. U also leads on device support (3 vs 1). 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.

NFC 4 UHF Converter ships an update every 2 months, U every 2 days. The most recent releases landed on September 17, 2026 and August 11, 2026 respectively.

## The numbers

| Metric | NFC 4 UHF Converter | U |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Size | 1 MB | 53 MB |
| Requires iOS | 16.0 | **15.3** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TERTIUM Technology S.r.l.](https://appshunter.io/developer/1367407576) | [RGIS](https://appshunter.io/developer/1286993638) |

## What reviewers say

### NFC 4 UHF Converter

[App page](https://appshunter.io/ios/app/nfc-4-uhf-converter/id6736905345)

**In-app purchases:** none


### U

[App page](https://appshunter.io/ios/app/u-count/id6738345799)

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

**In-app purchases:** none


## Frequently asked questions

### Is NFC 4 UHF Converter free?

NFC 4 UHF Converter is free to download, with no in-app purchases.

### Is U free?

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

### Do NFC 4 UHF Converter or U have ads?

Neither NFC 4 UHF Converter nor U shows ads.

### Which is updated more often, NFC 4 UHF Converter or U?

NFC 4 UHF Converter ships an update every 2 months, and U every 2 days. Most recently, NFC 4 UHF Converter was updated on September 17, 2026 and U on August 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.*