# Calq_ vs QR Code Reader²

The clearest difference is update cadence: Calq_ at every 4 days against QR Code Reader²'s every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Calq_ sells 2 in-app purchases, starting at $0.99 per month and QR Code Reader² sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Calq_ ships an update every 4 days, QR Code Reader² every 2 weeks. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Calq_ | QR Code Reader² |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 weeks |
| Size | 14 MB | 7 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Agustin Dell Aquila](https://appshunter.io/developer/1715197871) | [兴华 范](https://appshunter.io/developer/440983944) |

## What reviewers say

### Calq_

[App page](https://appshunter.io/ios/app/calq/id6471381452)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calq+ Monthly | $0.99 | per month |
| Calq+ Lifetime | $7.99 | one-time |


### QR Code Reader²

[App page](https://appshunter.io/ios/app/qr-code-reader/id6792239780)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CameraCode Pro Lifetime | $2.99 | one-time |


## Frequently asked questions

### Is Calq_ free?

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

### Is QR Code Reader² free?

QR Code Reader² is free to download, with in-app purchases available.

### Do Calq_ or QR Code Reader² have ads?

Neither Calq_ nor QR Code Reader² shows ads.

### Which is updated more often, Calq_ or QR Code Reader²?

Calq_ ships an update every 4 days, and QR Code Reader² every 2 weeks. Most recently, Calq_ was updated on October 29, 2026 and QR Code Reader² on October 31, 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.*