# QC Scan vs ZaiCode

The clearest difference is in-app purchases: QC Scan at none against ZaiCode's 1. QC Scan also leads on ads (none vs shown) and update cadence (monthly vs every 4 months). On price and device support there is nothing between them.

Both are free to download. ZaiCode sells 1 in-app purchase, starting at $1.99 per month. QC Scan asks for nothing beyond the download.

QC Scan ships an update monthly, ZaiCode every 4 months. The most recent releases landed on October 11, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | QC Scan | ZaiCode |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 4 months |
| Size | 16 MB | 11 MB |
| Requires iOS | **9.0** | 14.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Atsushi Kodama](https://appshunter.io/developer/1437123457) | [barnet Inc.](https://appshunter.io/developer/1203142034) |

## What reviewers say

### QC Scan

[App page](https://appshunter.io/ios/app/qc-scan/id1437123762)

**Features:** macOS Compatibility

**In-app purchases:** none


### ZaiCode

[App page](https://appshunter.io/ios/app/zaicode/id1556809830)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ZaiCodeサブスクリプション | $1.99 | per month |


## Frequently asked questions

### Is QC Scan free?

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

### Is ZaiCode free?

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

### Do QC Scan or ZaiCode have ads?

ZaiCode shows ads; QC Scan does not.

### Which is updated more often, QC Scan or ZaiCode?

QC Scan ships an update monthly, and ZaiCode every 4 months. Most recently, QC Scan was updated on October 11, 2026 and ZaiCode on September 29, 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.*