# QR Code PRO vs Kodura Subnet Calculator

The clearest difference is ads: Kodura Subnet Calculator at none against QR Code PRO's shown. Kodura Subnet Calculator also leads on update cadence (daily vs monthly). QR Code PRO's advantage is iOS requirement (15.5 vs 18.0). On price, in-app purchases and device support there is nothing between them.

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

QR Code PRO ships an update monthly, Kodura Subnet Calculator daily. The most recent releases landed on October 18, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | QR Code PRO | Kodura Subnet Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Daily** |
| Size | 59 MB | 6 MB |
| Requires iOS | **15.5** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [tadashi endo](https://appshunter.io/developer/1605441215) | [Kodura LLC](https://appshunter.io/developer/1881658044) |

## What reviewers say

### QR Code PRO

[App page](https://appshunter.io/ios/app/qr-code-pro-editor-and-scanner/id6443524810)

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

**In-app purchases:** none


### Kodura Subnet Calculator

[App page](https://appshunter.io/ios/app/kodura-subnet-calculator/id6811453029)

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

**In-app purchases:** none


## Frequently asked questions

### Is QR Code PRO free?

QR Code PRO is free to download, with no in-app purchases.

### Is Kodura Subnet Calculator free?

Kodura Subnet Calculator is free to download, with no in-app purchases.

### Do QR Code PRO or Kodura Subnet Calculator have ads?

QR Code PRO shows ads; Kodura Subnet Calculator does not.

### Which is updated more often, QR Code PRO or Kodura Subnet Calculator?

QR Code PRO ships an update monthly, and Kodura Subnet Calculator daily. Most recently, QR Code PRO was updated on October 18, 2026 and Kodura Subnet Calculator on October 22, 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.*