# 올클러 vs Round Millisecond Clock

올클러 and Round Millisecond Clock are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 올클러 | 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 | Yes | Yes |
| Update frequency | — | Every 4 months |
| Monetization | — | Ad-supported |
| Size | 37 MB | 34 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jung wuk Ryu](https://appshunter.io/developer/1548809825) | [Seulki Eom](https://appshunter.io/developer/1718927408) |

## What reviewers say

### 올클러

[App page](https://appshunter.io/ios/app/id6711347479)

**Features:** macOS Compatibility

**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 올클러 free?

올클러 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 올클러 or Round Millisecond Clock have ads?

Both 올클러 and Round Millisecond Clock show ads.

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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.*