# QR Reader vs Letrin

The clearest difference is in-app purchases: QR Reader at none against Letrin's 5. QR Reader also leads on iOS requirement (13.0 vs 15.5). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Letrin sells 5 in-app purchases, starting at $4.99 per month. QR Reader asks for nothing beyond the download.

QR Reader ships an update every 2 weeks, Letrin fortnightly. The most recent releases landed on October 8, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | QR Reader | Letrin |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Size | 55 MB | 73 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [子寒 汪](https://appshunter.io/developer/1718260088) | [Alperen Gedik](https://appshunter.io/developer/6794882488) |

## What reviewers say

### QR Reader

[App page](https://appshunter.io/ios/app/qr-readerqr-code-scanner/id6475756540)

**In-app purchases:** none


### Letrin

[App page](https://appshunter.io/ios/app/letrin-translate-dutch-mail/id6794882486)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Letrin Plus | $4.99 | per month |
| Letrin Plus | $49.99 | per year |
| 1 credit | $1.99 | one-time |
| 5 credits | $3.99 | one-time |
| 15 credits | $11.99 | one-time |


## Frequently asked questions

### Is QR Reader free?

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

### Is Letrin free?

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

### Do QR Reader or Letrin have ads?

Neither QR Reader nor Letrin shows ads.

### Which is updated more often, QR Reader or Letrin?

QR Reader ships an update every 2 weeks, and Letrin fortnightly. Most recently, QR Reader was updated on October 8, 2026 and Letrin on October 24, 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.*