# QR Code vs Ring sizer

The clearest difference is rating: Ring sizer at 3.7 against QR Code's 3.1. Ring sizer also leads on review sentiment (64% vs 50%). QR Code's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

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

Ring sizer holds the better App Store score, 3.7 against 3.1. Both are backed by a comparable volume of ratings — 26 and 13 respectively. Written reviews point the same way: 50% of QR Code's written reviews are positive against 64% of Ring sizer's.

QR Code ships an update every 4 months, Ring sizer every 8 months. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | QR Code | Ring sizer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (26 ratings)](https://appshunter.io/ios/app/qr-code-qr-reader-and-scanner/id1180506724/reviews) | **[3.7 (13 ratings)](https://appshunter.io/ios/app/ring-sizer-unit-convertor/id1566103820/reviews)** |
| Number of ratings | **26** | 13 |
| Positive reviews | 50.0% of reviews | **64.1% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 4 months** | Every 8 months |
| Monetization | **Free** | Ad-supported |
| Size | 22 MB | 48 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [海文 王](https://appshunter.io/developer/380479150) | [Regent Branding Ltd](https://appshunter.io/developer/1128207635) |

## What reviewers say

### QR Code

[App page](https://appshunter.io/ios/app/qr-code-qr-reader-and-scanner/id1180506724)

This app quickly scans and decodes QR codes and barcodes, supporting various data types like URLs, contacts, and plain text. It also allows users to generate their own QR codes and manage scan history.

**Highlights:** Instant QR code and barcode scanning, Generate custom QR codes, Scan from photos, Unlimited scan history, Auto-decode various data types, Directly open web links and map locations

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is QR Code free?

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

### Is Ring sizer free?

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

### Which has better reviews, QR Code or Ring sizer?

Ring sizer is rated higher. QR Code averages 3.1 out of 5 from 26 ratings, while Ring sizer averages 3.7 from 13 ratings.

### Do QR Code or Ring sizer have ads?

Ring sizer shows ads; QR Code does not.

### Which is updated more often, QR Code or Ring sizer?

QR Code ships an update every 4 months, and Ring sizer every 8 months. Most recently, QR Code was updated on October 14, 2026 and Ring sizer 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.*