# ETrans King vs QuickErrNote

The clearest difference is in-app purchases: ETrans King at none against QuickErrNote's 3. ETrans King also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. QuickErrNote sells 3 one-off in-app purchases. ETrans King asks for nothing beyond the download.

ETrans King ships an update weekly, QuickErrNote every 5 days. The most recent releases landed on October 3, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | ETrans King | QuickErrNote |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Size | 9 MB | 6 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [深圳市奇诺派科技有限公司](https://appshunter.io/developer/1671064254) | [HappyTimes Tech Co., Ltd.](https://appshunter.io/developer/1455774641) |

## What reviewers say

### ETrans King

[App page](https://appshunter.io/ios/app/etrans-king/id6787011161)

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

**In-app purchases:** none


### QuickErrNote

[App page](https://appshunter.io/ios/app/quickerrnote-ai-error-notebook/id6801344489)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 120 Points | $0.99 | one-time |
| 400 Points | $1.99 | one-time |
| 3500 Points | $12.99 | one-time |


## Frequently asked questions

### Is ETrans King free?

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

### Is QuickErrNote free?

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

### Do ETrans King or QuickErrNote have ads?

Neither ETrans King nor QuickErrNote shows ads.

### Which is updated more often, ETrans King or QuickErrNote?

ETrans King ships an update weekly, and QuickErrNote every 5 days. Most recently, ETrans King was updated on October 3, 2026 and QuickErrNote on September 29, 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.*