# 친절서비스 vs Round Millisecond Clock

The clearest difference is ads: 친절서비스 at none against Round Millisecond Clock's shown. Round Millisecond Clock's advantage is update cadence (every 4 months vs every 83 months) and iOS requirement (13.0 vs 15.6). On price, 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.

친절서비스 ships an update every 83 months, Round Millisecond Clock every 4 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 친절서비스 | Round Millisecond Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/round-millisecond-clock/id6736579896/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 83 months | **Every 4 months** |
| Monetization | — | Ad-supported |
| Size | 10 MB | 34 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jong Kook Kim](https://appshunter.io/developer/1490403276) | [Seulki Eom](https://appshunter.io/developer/1718927408) |

## What reviewers say

### 친절서비스

[App page](https://appshunter.io/ios/app/id1490403277)

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

**In-app purchases:** none


### Round Millisecond Clock

[App page](https://appshunter.io/ios/app/round-millisecond-clock/id6736579896)

This app offers a precise real-time digital clock with a unique circular interface, displaying both seconds and milliseconds. Customize your view with options for date, day of the week, and 12/24-hour format.

**Highlights:** Millisecond precision display, Dual circle interface for seconds and milliseconds, Customizable display (milliseconds, seconds, date, day), Multiple date formats, 12/24 hour support, Screen always on

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

**In-app purchases:** none


## Frequently asked questions

### Is 친절서비스 free?

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

### Is Round Millisecond Clock free?

Round Millisecond Clock is free to download, with no in-app purchases.

### Do 친절서비스 or Round Millisecond Clock have ads?

Round Millisecond Clock shows ads; 친절서비스 does not.

### Which is updated more often, 친절서비스 or Round Millisecond Clock?

친절서비스 ships an update every 83 months, and Round Millisecond Clock every 4 months. Most recently, 친절서비스 was updated on November 3, 2026 and Round Millisecond Clock on October 30, 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.*