# Calkey vs QR Code Reader

The clearest difference is in-app purchases: Calkey at none against QR Code Reader's 3. Calkey also leads on update cadence (every 5 days vs every 3 weeks) and iOS requirement (13.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. QR Code Reader sells 3 in-app purchases, starting at $2.99 per 7 days. Calkey asks for nothing beyond the download.

Calkey ships an update every 5 days, QR Code Reader every 3 weeks. The most recent releases landed on September 15, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Calkey | QR Code Reader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Size | 22 MB | 44 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [INGWA LABS IT SERVICES PRIVATE LIMITED](https://appshunter.io/developer/1722075796) | [Sai Kumar](https://appshunter.io/developer/1345543090) |

## What reviewers say

### Calkey

[App page](https://appshunter.io/ios/app/calkey-financial-calculators/id6474615438)

**Features:** macOS Compatibility

**In-app purchases:** none


### QR Code Reader

[App page](https://appshunter.io/ios/app/qr-code-reader-scan-create/id6761056096)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $2.99 | per 7 days |
| Monthly Premium Access | $9.99 | per month |
| Lifetime Premium Access | $24.99 | one-time |


## Frequently asked questions

### Is Calkey free?

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

### Is QR Code Reader free?

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

### Do Calkey or QR Code Reader have ads?

Neither Calkey nor QR Code Reader shows ads.

### Which is updated more often, Calkey or QR Code Reader?

Calkey ships an update every 5 days, and QR Code Reader every 3 weeks. Most recently, Calkey was updated on September 15, 2026 and QR Code Reader on September 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.*