# 하이진 vs lookoptical

The clearest difference is update cadence: lookoptical at fortnightly against 하이진's every 7 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.

하이진 ships an update every 7 months, lookoptical fortnightly. The most recent releases landed on November 3, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 하이진 | lookoptical |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Fortnightly** |
| Size | 19 MB | 71 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Hyungji Innovation and Creative Company Limited](https://appshunter.io/developer/1682845651) | [주식회사 룩옵틱스](https://appshunter.io/developer/1817579332) |

## What reviewers say

### 하이진

[App page](https://appshunter.io/ios/app/id6447831431)

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

**In-app purchases:** none


### lookoptical

[App page](https://appshunter.io/ios/app/lookoptical/id6746634006)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 하이진 free?

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

### Is lookoptical free?

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

### Do 하이진 or lookoptical have ads?

Neither 하이진 nor lookoptical shows ads.

### Which is updated more often, 하이진 or lookoptical?

하이진 ships an update every 7 months, and lookoptical fortnightly. Most recently, 하이진 was updated on November 3, 2026 and lookoptical 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.*