# secondeyes vs ETC SEOUL

The clearest difference is update cadence: secondeyes at every 3 months against ETC SEOUL's every 12 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

secondeyes ships an update every 3 months, ETC SEOUL every 12 months. The most recent releases landed on September 20, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | secondeyes | ETC SEOUL |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 12 months |
| Size | 71 MB | 29 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [chang gu kang](https://appshunter.io/developer/1341546291) | [ETC Company Co., Ltd](https://appshunter.io/developer/1495604719) |

## What reviewers say

### secondeyes

[App page](https://appshunter.io/ios/app/secondeyes/id1341546292)

**Features:** Vision Pro support

**In-app purchases:** none


### ETC SEOUL

[App page](https://appshunter.io/ios/app/etc-seoul/id1604141968)

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

**In-app purchases:** none


## Frequently asked questions

### Is secondeyes free?

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

### Is ETC SEOUL free?

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

### Do secondeyes or ETC SEOUL have ads?

Neither secondeyes nor ETC SEOUL shows ads.

### Which is updated more often, secondeyes or ETC SEOUL?

secondeyes ships an update every 3 months, and ETC SEOUL every 12 months. Most recently, secondeyes was updated on September 20, 2026 and ETC SEOUL on September 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*