# QR Code Reader vs Screen Ruler

The clearest difference is update cadence: QR Code Reader at weekly against Screen Ruler's every 4 months. QR Code Reader also leads on iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. QR Code Reader sells 4 in-app purchases, starting at $3.99 per 7 days and Screen Ruler sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

QR Code Reader ships an update weekly, Screen Ruler every 4 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | QR Code Reader | Screen Ruler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (16 ratings)](https://appshunter.io/ios/app/qr-code-reader-ai-scan/id6745132899/reviews)** | — |
| Number of ratings | **16** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 52 MB | 3 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Elite Wealth Co., Ltd.](https://appshunter.io/developer/1784660633) | [LEAN ASIA CO., LTD](https://appshunter.io/developer/1815050814) |

## What reviewers say

### QR Code Reader

[App page](https://appshunter.io/ios/app/qr-code-reader-ai-scan/id6745132899)

Instantly scan QR codes and barcodes with an AI-powered engine. Identify plants, animals, and objects using your camera. Offers design tools for custom codes and intelligent history management.

**Highlights:** AI-powered QR/barcode scanning, Object identification (plants, animals, products), Custom QR code design tools, Intelligent scan history, Privacy-focused data processing

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access | $3.99 | per 7 days |
| Monthly Access | $9.99 | per month |
| Limited Offer | $35.99 | per year |
| Yearly Access | $59.99 | per year |


### Screen Ruler

[App page](https://appshunter.io/ios/app/screen-ruler-actual-size/id6772123351)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fraction Inch Weekly | $2.99 | per 7 days |
| Card Calibration Yearly | $14.99 | per year |
| Ring & Screw Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is QR Code Reader free?

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

### Is Screen Ruler free?

Screen Ruler is free to download, with in-app purchases available.

### Do QR Code Reader or Screen Ruler have ads?

Neither QR Code Reader nor Screen Ruler shows ads.

### Which is updated more often, QR Code Reader or Screen Ruler?

QR Code Reader ships an update weekly, and Screen Ruler every 4 months. Most recently, QR Code Reader was updated on October 24, 2026 and Screen Ruler on October 25, 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.*