# 1초 모자이크 vs SecondPhoto

The clearest difference is in-app purchases: 1초 모자이크 at none against SecondPhoto's 2. 1초 모자이크 also leads on iOS requirement (17.0 vs 26.0). SecondPhoto's advantage is update cadence (weekly vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. SecondPhoto sells 2 in-app purchases, starting at $1.99 per month. 1초 모자이크 asks for nothing beyond the download.

1초 모자이크 ships an update every 3 weeks, SecondPhoto weekly. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 1초 모자이크 | SecondPhoto |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 90.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | — | Freemium |
| Size | 7 MB | 66 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [se hwan cha](https://appshunter.io/developer/884914489) | [Yeonwoo Lee](https://appshunter.io/developer/1710979433) |

## What reviewers say

### 1초 모자이크

[App page](https://appshunter.io/ios/app/1/id6772221645)

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

**In-app purchases:** none


### SecondPhoto

[App page](https://appshunter.io/ios/app/secondphoto-camera-album/id6774628006)

Organize and secure personal photos and videos in a separate library. Features include PIN lock, decoy mode, file renaming, and watermarking. Sync across devices with iCloud.

**Highlights:** Separate photo library, Album organization, File renaming and editing, PIN lock and decoy mode, Location/EXIF data removal, In-app camera, Watermarking, iCloud sync

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SecondPhoto+ Monthly | $1.99 | per month |
| SecondPhoto+ Yearly | $11.99 | per year |


## Frequently asked questions

### Is 1초 모자이크 free?

1초 모자이크 is free to download, with no in-app purchases.

### Is SecondPhoto free?

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

### Do 1초 모자이크 or SecondPhoto have ads?

Neither 1초 모자이크 nor SecondPhoto shows ads.

### Which is updated more often, 1초 모자이크 or SecondPhoto?

1초 모자이크 ships an update every 3 weeks, and SecondPhoto weekly. Most recently, 1초 모자이크 was updated on October 28, 2026 and SecondPhoto on October 31, 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.*