# ScanX for QR Code & NFC vs KM

The clearest difference is ads: KM at none against ScanX for QR Code & NFC's shown. KM also leads on update cadence (every 2 months vs every 4 months). On price, in-app purchases, device support 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.

ScanX for QR Code & NFC ships an update every 4 months, KM every 2 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ScanX for QR Code & NFC | KM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (35 ratings)](https://appshunter.io/ios/app/scanx-for-qr-code-and-nfc/id1544299999/reviews)** | — |
| Number of ratings | **35** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Ad-supported | — |
| Size | 9 MB | 27 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [哲 魏](https://appshunter.io/developer/855008029) | [Jiaxing Hejun](https://appshunter.io/developer/1739001712) |

## What reviewers say

### ScanX for QR Code & NFC

[App page](https://appshunter.io/ios/app/scanx-for-qr-code-and-nfc/id1544299999)

This utility app quickly scans various types of codes, including NFC tags, AirTags, QR codes, and barcodes. It offers features like NFC writing, history saving, and QR code creation, all without requiring an internet connection for scanning.

**Highlights:** NFC tag reader and writer, AirTag information scanner, QR code and barcode scanning, QR code creation and sharing, Offline scanning capability, Scan history saving, Flashlight support for dark scanning

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

**In-app purchases:** none


### KM

[App page](https://appshunter.io/ios/app/km-airbed/id6771200595)

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

**In-app purchases:** none


## Frequently asked questions

### Is ScanX for QR Code & NFC free?

ScanX for QR Code & NFC is free to download, with no in-app purchases.

### Is KM free?

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

### Do ScanX for QR Code & NFC or KM have ads?

ScanX for QR Code & NFC shows ads; KM does not.

### Which is updated more often, ScanX for QR Code & NFC or KM?

ScanX for QR Code & NFC ships an update every 4 months, and KM every 2 months. Most recently, ScanX for QR Code & NFC was updated on November 3, 2026 and KM on October 31, 2026.

---

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