# 매뉴얼박스 vs Second

The clearest difference is in-app purchases: 매뉴얼박스 at none against Second's 1. 매뉴얼박스 also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Second sells 1 one-off in-app purchase. 매뉴얼박스 asks for nothing beyond the download.

## The numbers

| Metric | 매뉴얼박스 | Second |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/second-sync/id6752860014/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 88.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 2 days |
| Monetization | — | Free with in-app purchases |
| Size | 29 MB | 69 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SnapTool](https://appshunter.io/developer/1796068689) | [Minjun Kim](https://appshunter.io/developer/1841275054) |

## What reviewers say

### 매뉴얼박스

[App page](https://appshunter.io/ios/app/id6749670330)

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

**In-app purchases:** none


### Second

[App page](https://appshunter.io/ios/app/second-sync/id6752860014)

This utility app provides precise server time synchronization down to milliseconds. It features drift tracking for sustained accuracy and a Picture-in-Picture timer to monitor live server time while using other applications. Ideal for critical moments like registrations and ticketing.

**Highlights:** Precise server time synchronization, Drift tracking for accuracy, Picture-in-Picture timer, Example site shortcuts, Multilingual support

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 초정확 Pro 업그레이드 | $1.99 | one-time |


## Frequently asked questions

### Is 매뉴얼박스 free?

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

### Is Second free?

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

### Do 매뉴얼박스 or Second have ads?

Second shows ads; 매뉴얼박스 does not.

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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.*