# Big QR Reader vs SubGuard

The clearest difference is ads: SubGuard at none against Big QR Reader's shown. SubGuard also leads on monetization model (free vs ad-supported) and ratings volume (9 vs 2). Big QR Reader's advantage is rating (5.0 vs 4.6) and iOS requirement (13.0 vs 18.0). On price, update cadence, 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.

Big QR Reader holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 2 and 9 respectively.

Big QR Reader ships an update every 5 days, SubGuard every 9 days. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Big QR Reader | SubGuard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/big-qr-reader/id1662341591/reviews)** | [4.6 (9 ratings)](https://appshunter.io/ios/app/subguard-private-sub-tracker/id6447958086/reviews) |
| Number of ratings | 2 | **9** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Every 9 days |
| Monetization | Ad-supported | **Free** |
| Size | 23 MB | 16 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Peidatong Technology Co., Ltd.](https://appshunter.io/developer/1662341593) | [MEGAMOBI LIMITED](https://appshunter.io/developer/1683100389) |

## What reviewers say

### Big QR Reader

[App page](https://appshunter.io/ios/app/big-qr-reader/id1662341591)

Easily scan and decode various QR codes and barcodes, including contact info, URLs, Wi-Fi credentials, and product details. It supports scanning from your gallery and in low-light conditions, with all scan history saved for quick access.

**Highlights:** Reads all QR & barcode formats, Saves scan history, Scans from gallery, Flashlight for dark environments, Offline scanning, Scans promotion and coupon codes

**Features:** macOS Compatibility

**In-app purchases:** none


### SubGuard

[App page](https://appshunter.io/ios/app/subguard-private-sub-tracker/id6447958086)

This utility app offers lightning-fast QR and barcode scanning with AI-powered identification for plants, animals, and more. Its lightweight design and intuitive interface make it easy to use for everyday tasks, from checking prices to learning about the world around you.

**Highlights:** Lightning-fast QR/barcode scanning, AI recognition for plants, animals, cars, Built-in flash for low-light scanning, Simple, lightweight, and intuitive interface, Save and organize scanned information, Generate QR codes

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

**In-app purchases:** none


## Frequently asked questions

### Is Big QR Reader free?

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

### Is SubGuard free?

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

### Which has better reviews, Big QR Reader or SubGuard?

Big QR Reader is rated higher. Big QR Reader averages 5.0 out of 5 from 2 ratings, while SubGuard averages 4.6 from 9 ratings.

### Do Big QR Reader or SubGuard have ads?

Big QR Reader shows ads; SubGuard does not.

### Which is updated more often, Big QR Reader or SubGuard?

Big QR Reader ships an update every 5 days, and SubGuard every 9 days. Most recently, Big QR Reader was updated on October 30, 2026 and SubGuard 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.*