# Ring sizer vs QR Code Reader、Barcode Scanner

The clearest difference is rating: QR Code Reader、Barcode Scanner at 4.8 against Ring sizer's 3.7. QR Code Reader、Barcode Scanner also leads on ads (none vs shown) and update cadence (every 2 months vs every 8 months). Ring sizer's advantage is iOS requirement (13.0 vs 15.5). On price, ratings volume, 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.

QR Code Reader、Barcode Scanner holds the better App Store score, 4.8 against 3.7. Both are backed by a comparable volume of ratings — 13 and 10 respectively.

Ring sizer ships an update every 8 months, QR Code Reader、Barcode Scanner every 2 months. The most recent releases landed on October 3, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Ring sizer | QR Code Reader、Barcode Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (13 ratings)](https://appshunter.io/ios/app/ring-sizer-unit-convertor/id1566103820/reviews) | **[4.8 (10 ratings)](https://appshunter.io/ios/app/qr-code-readerbarcode-scanner/id6471344894/reviews)** |
| Number of ratings | **13** | 10 |
| Positive reviews | 64.1% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 8 months | **Every 2 months** |
| Monetization | Ad-supported | **Free** |
| Size | 48 MB | 76 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Regent Branding Ltd](https://appshunter.io/developer/1128207635) | [Md Sajedur Rahaman](https://appshunter.io/developer/1586019019) |

## What reviewers say

### Ring sizer

[App page](https://appshunter.io/ios/app/ring-sizer-unit-convertor/id1566103820)

Easily determine your accurate ring size and convert between international sizing standards. This tool helps you find the perfect fit for any ring, avoiding the frustration of ill-fitting jewelry. Save your sizes and compare them effortlessly.

**Highlights:** Accurate ring and finger size measurement, Convert between international ring size standards (US, UK, EU), Simple and easy-to-use interface, Supports a wide range of ring sizes, Save and compare ring sizes, Unit conversion functionality

**Features:** Vision Pro support

**In-app purchases:** none


### QR Code Reader、Barcode Scanner

[App page](https://appshunter.io/ios/app/qr-code-readerbarcode-scanner/id6471344894)

Easily scan and generate QR codes and barcodes for various information types like Wi-Fi, websites, and text. Save your scan history and share codes instantly via popular social media and email platforms. Supports low-light scanning with a flashlight.

**Highlights:** Scan QR Codes & Barcodes, Create QR Codes & Barcodes, Flashlight support for low-light, Automatic scan history, Share codes via email and social media, Import images for scanning

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ring sizer free?

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

### Is QR Code Reader、Barcode Scanner free?

QR Code Reader、Barcode Scanner is free to download, with no in-app purchases.

### Which has better reviews, Ring sizer or QR Code Reader、Barcode Scanner?

QR Code Reader、Barcode Scanner is rated higher. Ring sizer averages 3.7 out of 5 from 13 ratings, while QR Code Reader、Barcode Scanner averages 4.8 from 10 ratings.

### Do Ring sizer or QR Code Reader、Barcode Scanner have ads?

Ring sizer shows ads; QR Code Reader、Barcode Scanner does not.

### Which is updated more often, Ring sizer or QR Code Reader、Barcode Scanner?

Ring sizer ships an update every 8 months, and QR Code Reader、Barcode Scanner every 2 months. Most recently, Ring sizer was updated on October 3, 2026 and QR Code Reader、Barcode Scanner on September 28, 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.*