# ISBN vs QR Code Reader

The clearest difference is price: QR Code Reader at Free against ISBN's $0.99. QR Code Reader also leads on update cadence (every 2 weeks vs every 8 months). ISBN's advantage is in-app purchases (none vs 4) and ads (none vs shown). On device support there is nothing between them.

QR Code Reader is free to download; ISBN costs $0.99 up front. QR Code Reader sells 4 in-app purchases, starting at $4.99 per 7 days. ISBN asks for nothing beyond the download.

ISBN ships an update every 8 months, QR Code Reader every 2 weeks. The most recent releases landed on September 10, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | ISBN | QR Code Reader |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.4 (37 ratings)](https://appshunter.io/ios/app/qr-code-reader-scan-qr-app/id1552346918/reviews)** |
| Number of ratings | — | **37** |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Every 2 weeks** |
| Monetization | Paid | **Ad-supported** |
| Size | 3 MB | 56 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CROMBEZ Emmanuel](https://appshunter.io/developer/375656695) | [Quang Tran](https://appshunter.io/developer/1449441569) |

## What reviewers say

### ISBN

[App page](https://appshunter.io/ios/app/isbn/id1061626540)

Create and manage a personal book inventory using ISBN codes. Organize books with custom flags, notes, and contact associations. Export your library data to CSV for use in spreadsheets.

**Highlights:** Book inventory management, ISBN scanning/entry, Customizable flags for categorization, Free text notes per book, Attach books to contacts, CSV export for spreadsheets

**In-app purchases:** none


### QR Code Reader

[App page](https://appshunter.io/ios/app/qr-code-reader-scan-qr-app/id1552346918)

Instantly scan QR codes and barcodes to access website links, product details, and more. Generate custom QR codes for various information and utilize business-specific features for inventory management and data export. Offers unlimited scan history and iCloud sync across devices.

**Highlights:** Scan all major QR and barcode formats, Search products on Amazon, eBay, Google, Generate custom QR codes, Business scanner mode for inventory, Export scan history as CSV, Unlimited scan history, iCloud sync across devices

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| QR Code Reader Pro 1 week | $4.99 | per 7 days |
| QR Code Reader Pro 1 week | $9.99 | per 7 days |
| QR Code Reader Pro (1 Month) | $14.99 | per month |
| QR Code Reader Pro 1 Month | $29.99 | per month |


## Frequently asked questions

### Is ISBN free?

ISBN costs $0.99, with no in-app purchases.

### Is QR Code Reader free?

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

### Do ISBN or QR Code Reader have ads?

QR Code Reader shows ads; ISBN does not.

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

ISBN ships an update every 8 months, and QR Code Reader every 2 weeks. Most recently, ISBN was updated on September 10, 2026 and QR Code Reader on September 20, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*