# TQS Code Reader vs KDKN SeQR Scan

The clearest difference is iOS requirement: KDKN SeQR Scan at 11.0 against TQS Code Reader's 15.5. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

TQS Code Reader ships an update every 6 months, KDKN SeQR Scan every 7 months. The most recent releases landed on September 20, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | TQS Code Reader | KDKN SeQR Scan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/tqs-code-reader/id1577918366/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 7 months |
| Monetization | Free | — |
| Size | 33 MB | 19 MB |
| Requires iOS | 15.5 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [WIPOTEC GmbH](https://appshunter.io/developer/1577918368) | [SECURITY SOFTWARE & SOLUTIONS LLP](https://appshunter.io/developer/1212339368) |

## What reviewers say

### TQS Code Reader

[App page](https://appshunter.io/ios/app/tqs-code-reader/id1577918366)

This app decodes and validates 1D and 2D barcodes, checking their content against GS1 and IFA specifications. It provides detailed information about detected identifiers and displays inspection results clearly, storing them in a history database.

**Highlights:** GS1 and IFA code parsing, 1D and 2D code decoding, Detailed identifier information, Structure and content validation, Clear inspection result display, History database for scanned codes

**In-app purchases:** none


### KDKN SeQR Scan

[App page](https://appshunter.io/ios/app/kdkn-seqr-scan/id6747247453)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TQS Code Reader free?

TQS Code Reader is free to download, with no in-app purchases.

### Is KDKN SeQR Scan free?

KDKN SeQR Scan is free to download, with no in-app purchases.

### Do TQS Code Reader or KDKN SeQR Scan have ads?

Neither TQS Code Reader nor KDKN SeQR Scan shows ads.

### Which is updated more often, TQS Code Reader or KDKN SeQR Scan?

TQS Code Reader ships an update every 6 months, and KDKN SeQR Scan every 7 months. Most recently, TQS Code Reader was updated on September 20, 2026 and KDKN SeQR Scan on June 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.*