# QR Scanner vs Sentinel Line

The clearest difference is in-app purchases: Sentinel Line at none against QR Scanner's 10. Sentinel Line also leads on ads (none vs shown) and update cadence (every 4 days vs monthly). QR Scanner's advantage is iOS requirement (15.0 vs 26.1). On price and device support there is nothing between them.

Both are free to download. QR Scanner sells 10 in-app purchases, starting at $4.99 per 7 days. Sentinel Line asks for nothing beyond the download.

QR Scanner ships an update monthly, Sentinel Line every 4 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | QR Scanner | Sentinel Line |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (121 ratings)](https://appshunter.io/ios/app/qr-scanner-pdf-and-code-reader/id6469589045/reviews)** | — |
| Number of ratings | **121** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 132 MB | 5 MB |
| Requires iOS | **15.0** | 26.1 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Magic Snail](https://appshunter.io/developer/1758662275) | [Frederico Cox](https://appshunter.io/developer/1455752353) |

## What reviewers say

### QR Scanner

[App page](https://appshunter.io/ios/app/qr-scanner-pdf-and-code-reader/id6469589045)

Easily scan and generate QR codes with customizable designs and templates. Also includes powerful tools to scan documents and convert images into high-quality PDFs for seamless sharing and management.

**Highlights:** AI-generated QR codes, QR code scanning (URLs, contacts, Wi-Fi), QR code generation (links, text, phone), Stylish QR code templates, Business card QR codes, Scan history, PDF scanning and conversion

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| QR Scanner Pro | $4.99 | per 7 days |
| QR Scanner PRO 1 Week | $5.99 | per 7 days |
| QR Scanner PRO 1 Week | $5.99 | per 7 days |
| QR Scanner PRO 1 Week | $9.99 | per 7 days |
| QR Scanner PRO 1 Week | $9.99 | per 7 days |
| QR Scanner PRO | $12.99 | per 7 days |
| QR Scanner PRO | $29.99 | per year |
| QR Scanner PRO 1 Year | $34.99 | per year |
| QR Scanner PRO 1 Year | $39.99 | per year |
| QR Scanner Pro | $19.99 | one-time |


### Sentinel Line

[App page](https://appshunter.io/ios/app/sentinel-line/id6807493110)

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

**In-app purchases:** none


## Frequently asked questions

### Is QR Scanner free?

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

### Is Sentinel Line free?

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

### Do QR Scanner or Sentinel Line have ads?

QR Scanner shows ads; Sentinel Line does not.

### Which is updated more often, QR Scanner or Sentinel Line?

QR Scanner ships an update monthly, and Sentinel Line every 4 days. Most recently, QR Scanner was updated on November 3, 2026 and Sentinel Line on October 31, 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.*