# OTAC auth vs QR Code ReaderⓇ

The clearest difference is in-app purchases: OTAC auth at none against QR Code ReaderⓇ's 3. OTAC auth also leads on update cadence (every 6 weeks vs every 4 months). QR Code ReaderⓇ's advantage is iOS requirement (13.4 vs 15.0). 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 $3.99 per month. OTAC auth asks for nothing beyond the download.

OTAC auth ships an update every 6 weeks, QR Code ReaderⓇ every 4 months. The most recent releases landed on October 5, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | OTAC auth | QR Code ReaderⓇ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 4 months |
| Size | 10 MB | 24 MB |
| Requires iOS | 15.0 | **13.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [swIDch Limited](https://appshunter.io/developer/1723421198) | [WuHan ChongYue Future Technology Co., Ltd.](https://appshunter.io/developer/1751681836) |

## What reviewers say

### OTAC auth

[App page](https://appshunter.io/ios/app/otac-auth/id6475137518)

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

**In-app purchases:** none


### QR Code ReaderⓇ

[App page](https://appshunter.io/ios/app/qr-code-reader/id6572291980)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Yearly | $14.99 | per year |
| Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is OTAC auth free?

OTAC auth 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 OTAC auth or QR Code ReaderⓇ have ads?

Neither OTAC auth nor QR Code ReaderⓇ shows ads.

### Which is updated more often, OTAC auth or QR Code ReaderⓇ?

OTAC auth ships an update every 6 weeks, and QR Code ReaderⓇ every 4 months. Most recently, OTAC auth was updated on October 5, 2026 and QR Code ReaderⓇ on October 12, 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.*