# 우리아이의 유치원 vs Second

The clearest difference is in-app purchases: 우리아이의 유치원 at none against Second's 1. 우리아이의 유치원 also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). On price and device support there is nothing between them.

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

## The numbers

| Metric | 우리아이의 유치원 | 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 4 days |
| Monetization | — | Free |
| Size | 24 MB | 56 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hyungjun KIM](https://appshunter.io/developer/1707984764) | [Minjun Kim](https://appshunter.io/developer/1841275054) |

## What reviewers say

### 우리아이의 유치원

[App page](https://appshunter.io/ios/app/id6467133685)

**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, crucial for time-sensitive events like registrations and ticketing. It features drift tracking for sustained accuracy and a Picture-in-Picture timer for live monitoring while using other applications.

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

**Features:** Vision Pro support

**In-app purchases (1)**

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


## Frequently asked questions

### Is 우리아이의 유치원 free?

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

### Is Second free?

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

### Do 우리아이의 유치원 or Second have ads?

Second shows ads; 우리아이의 유치원 does not.

---

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