# QR Code Scanner vs chain

The clearest difference is in-app purchases: chain at none against QR Code Scanner's 4. chain also leads on update cadence (every 4 days vs every 2 weeks) and iOS requirement (12.0 vs 14.0). On price, ads and device support there is nothing between them.

Both are free to download. QR Code Scanner sells 4 in-app purchases, starting at $4.99 per month. chain asks for nothing beyond the download.

QR Code Scanner ships an update every 2 weeks, chain every 4 days. The most recent releases landed on October 2, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | QR Code Scanner | chain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (15 ratings)](https://appshunter.io/ios/app/qr-code-scanner-qr-reader/id6502285859/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 55.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 15 MB | 25 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [满 李](https://appshunter.io/developer/1653727587) | [Devfly Digital d.o.o.](https://appshunter.io/developer/1800073858) |

## What reviewers say

### QR Code Scanner

[App page](https://appshunter.io/ios/app/qr-code-scanner-qr-reader/id6502285859)

This utility app transforms your device into a powerful QR code and barcode scanner. It can also generate custom QR codes and barcodes, supporting a wide range of code types for efficient data access and sharing.

**Highlights:** Scan QR codes and barcodes, Create QR codes and barcodes, Supports various code types, Direct app integration, Haptic Touch and Control Center shortcuts, 100% local processing for privacy

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to Pro - Monthly | $4.99 | per month |
| Upgrade to Pro - Annual | $9.99 | per year |
| Upgrade to Pro - Annual | $14.99 | per year |
| QR Scanner Pro - Lifetime | $29.99 | one-time |


### chain

[App page](https://appshunter.io/ios/app/chain-do/id6749516019)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is QR Code Scanner free?

QR Code Scanner is free to download, with in-app purchases available.

### Is chain free?

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

### Do QR Code Scanner or chain have ads?

Neither QR Code Scanner nor chain shows ads.

### Which is updated more often, QR Code Scanner or chain?

QR Code Scanner ships an update every 2 weeks, and chain every 4 days. Most recently, QR Code Scanner was updated on October 2, 2026 and chain on October 5, 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.*