# LSIS SmartViewer vs QR Code Reader＊Barcode Scanner

The clearest difference is rating: LSIS SmartViewer at 5.0 against QR Code Reader＊Barcode Scanner's 4.5. LSIS SmartViewer also leads on in-app purchases (none vs 20) and ads (none vs shown). QR Code Reader＊Barcode Scanner's advantage is ratings volume (23K vs 1) and chart position (#52 vs unranked). On price, update cadence and device support there is nothing between them.

Both are free to download. QR Code Reader＊Barcode Scanner sells 17 in-app purchases, starting at $6.99 per 7 days. LSIS SmartViewer asks for nothing beyond the download.

LSIS SmartViewer holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: QR Code Reader＊Barcode Scanner has 23K ratings behind it against 1, so its average is the more settled of the two.

LSIS SmartViewer ships an update every 8 days, QR Code Reader＊Barcode Scanner fortnightly. The most recent releases landed on September 16, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | LSIS SmartViewer | QR Code Reader＊Barcode Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lsis-smartviewer/id1492190615/reviews)** | [4.5 (23K ratings)](https://appshunter.io/ios/app/qr-code-readerbarcode-scanner/id1584764976/reviews) |
| Number of ratings | 1 | **23K** |
| Positive reviews | — | 31.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 8 days** | Fortnightly |
| Monetization | **Free** | Freemium |
| Best chart rank | — | **#52** |
| Size | 18 MB | 196 MB |
| Requires iOS | **9.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [LS ELECTRIC Co., Ltd.](https://appshunter.io/developer/1121925468) | [VISARGERD, S.L.](https://appshunter.io/developer/1584764978) |

## What reviewers say

### LSIS SmartViewer

[App page](https://appshunter.io/ios/app/lsis-smartviewer/id1492190615)

Monitor LS Sanjeon ACB OCR and Smart MCCB devices via BLE communication. View device events and analyze fault waveforms with graphical representation. Supports ACB OCR S-type and Smart MCCB advanced models.

**Highlights:** BLE communication monitoring, Device event viewing, Fault waveform analysis, Graph display of waveforms, ACB OCR S-type support, Smart MCCB advanced support

**Features:** macOS Compatibility

**In-app purchases:** none


### QR Code Reader＊Barcode Scanner

[App page](https://appshunter.io/ios/app/qr-code-readerbarcode-scanner/id1584764976)

**Currently charting:** #52 Top Grossing · Utilities, #149 Top Free · Utilities (US App Store)

Easily scan and generate QR codes and barcodes for various purposes, including Wi-Fi access, product information, and URLs. Save and manage your codes, and even check lottery tickets. Offers both free and premium features for enhanced customization and unlimited use.

**Highlights:** Scan any QR code or barcode, Create custom QR codes for Wi-Fi, URLs, and more, Generate barcodes for products, Save and manage scanned codes, Scan lottery tickets, Customize QR code colors and backgrounds (Pro), Unlimited code creation and export (Pro)

**Features:** Vision Pro support

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| QR code reader | $6.99 | per 7 days |
| 1 Week Ultimate | $6.99 | per 7 days |
| 1 Week Advanced Standard | $6.99 | per 7 days |
| 1 Week Lite: 3 day-trial | $6.99 | per 7 days |
| Barcode and QR reader PLUS | $9.99 | per month |
| 1 Month Pro: 3-day trial | $9.99 | per month |
| 1 Week Elite | $9.99 | per 7 days |
| 1 Week Lite | $9.99 | per 7 days |
| 1 Week Top: Trial Week | $9.99 | per 7 days |
| QR & Barcode reader | $9.99 | per 7 days |
| 1 Week Top: 3 day-trial | $9.99 | per 7 days |
| 1 Week Top: 3 day-trial | $10.99 | per 7 days |
| 1 Month Top: 3 day-trial | $24.99 | per month |
| QR code reader | $34.99 | per year |
| 1 Year Ultimate Lite | $34.99 | per year |
| 1 Year Basic | $35.99 | per year |
| QR Scanner | $39.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 🚀 Quick scanning
- 💡 Useful for entrepreneurs

**What reviewers complain about**

- 🐛 Scanner doesn't work
- 💰 Hidden subscription fees
- 🔒 Difficult to cancel subscription

**Reported bugs**

- App crashes on launch
- Scanning not working as advertised

**Requested features**

- Free scanning option
- Improved subscription management


## Frequently asked questions

### Is LSIS SmartViewer free?

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

### Is QR Code Reader＊Barcode Scanner free?

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

### Which has better reviews, LSIS SmartViewer or QR Code Reader＊Barcode Scanner?

LSIS SmartViewer is rated higher. LSIS SmartViewer averages 5.0 out of 5 from 1 ratings, while QR Code Reader＊Barcode Scanner averages 4.5 from 23K ratings.

### Do LSIS SmartViewer or QR Code Reader＊Barcode Scanner have ads?

QR Code Reader＊Barcode Scanner shows ads; LSIS SmartViewer does not.

### Which is updated more often, LSIS SmartViewer or QR Code Reader＊Barcode Scanner?

LSIS SmartViewer ships an update every 8 days, and QR Code Reader＊Barcode Scanner fortnightly. Most recently, LSIS SmartViewer was updated on September 16, 2026 and QR Code Reader＊Barcode Scanner on October 1, 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.*