# QR Code Scanner vs Calenn | Calendar at a Glance

The clearest difference is in-app purchases: QR Code Scanner at none against Calenn | Calendar at a Glance's 2. QR Code Scanner also leads on iOS requirement (16.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Calenn | Calendar at a Glance sells 2 in-app purchases, starting at $3.99 per month. QR Code Scanner asks for nothing beyond the download.

QR Code Scanner ships an update every 10 days, Calenn | Calendar at a Glance every 2 weeks. Both last shipped on November 8, 2026.

## The numbers

| Metric | QR Code Scanner | Calenn | Calendar at a Glance |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 10 days** | Every 2 weeks |
| Monetization | Ad-supported | — |
| Size | 37 MB | 21 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [mirai sato](https://appshunter.io/developer/1282286456) | [Koya Hirose](https://appshunter.io/developer/1814548770) |

## What reviewers say

### QR Code Scanner

[App page](https://appshunter.io/ios/app/qr-code-scanner-qr-reader/id6743112678)

This app quickly and accurately scans QR codes and barcodes using your iPhone camera. It features autofocus, a scan history, and the ability to read codes from photos or in low light conditions.

**Highlights:** Reads QR codes/barcodes in 0.1 seconds, Autofocus function, Automatic scan history saving, Reads from photo albums, Reads in dark places

**Features:** macOS Compatibility

**In-app purchases:** none


### Calenn | Calendar at a Glance

[App page](https://appshunter.io/ios/app/calenn-calendar-at-a-glance/id6746424742)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $3.99 | per month |
| Annual Plan | $39.99 | per year |


## Frequently asked questions

### Is QR Code Scanner free?

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

### Is Calenn | Calendar at a Glance free?

Calenn | Calendar at a Glance is free to download, with in-app purchases available.

### Do QR Code Scanner or Calenn | Calendar at a Glance have ads?

Both QR Code Scanner and Calenn | Calendar at a Glance show ads.

### Which is updated more often, QR Code Scanner or Calenn | Calendar at a Glance?

QR Code Scanner ships an update every 10 days, and Calenn | Calendar at a Glance every 2 weeks. Most recently, QR Code Scanner was updated on November 8, 2026 and Calenn | Calendar at a Glance on November 8, 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.*