# Cálculo del Factor de Forma vs QR

The clearest difference is in-app purchases: Cálculo del Factor de Forma at none against QR's 2. Cálculo del Factor de Forma also leads on ads (none vs shown) and iOS requirement (11.0 vs 18.6). QR's advantage is update cadence (daily vs every 2 months). On price and device support there is nothing between them.

Both are free to download. QR sells 2 in-app purchases, starting at $0.99 per month. Cálculo del Factor de Forma asks for nothing beyond the download.

Cálculo del Factor de Forma ships an update every 2 months, QR daily. The most recent releases landed on August 18, 2026 and August 29, 2026 respectively.

## The numbers

| Metric | Cálculo del Factor de Forma | QR |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Daily** |
| Size | 9 MB | 51 MB |
| Requires iOS | **11.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Saint-Gobain](https://appshunter.io/developer/543924473) | [Entertainment Apps MCHJ](https://appshunter.io/developer/1032971481) |

## What reviewers say

### Cálculo del Factor de Forma

[App page](https://appshunter.io/ios/app/calculo-del-factor-de-forma/id493882662)

**Features:** macOS Compatibility

**In-app purchases:** none


### QR

[App page](https://appshunter.io/ios/app/qr-code-qr-reader-and-maker/id6758352038)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| QR Scanner Premium  Monthly | $0.99 | per month |
| QR Scanner Premium - Yearly | $9.99 | per year |


## Frequently asked questions

### Is Cálculo del Factor de Forma free?

Cálculo del Factor de Forma is free to download, with no in-app purchases.

### Is QR free?

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

### Do Cálculo del Factor de Forma or QR have ads?

QR shows ads; Cálculo del Factor de Forma does not.

### Which is updated more often, Cálculo del Factor de Forma or QR?

Cálculo del Factor de Forma ships an update every 2 months, and QR daily. Most recently, Cálculo del Factor de Forma was updated on August 18, 2026 and QR on August 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.*