# Luminor.ID vs Round Millisecond Clock

The clearest difference is ads: Luminor.ID at none against Round Millisecond Clock's shown. Luminor.ID also leads on update cadence (every 5 weeks vs every 4 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Luminor.ID ships an update every 5 weeks, Round Millisecond Clock every 4 months. The most recent releases landed on October 7, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Luminor.ID | 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 5 weeks** | Every 4 months |
| Monetization | — | Ad-supported |
| Size | 92 MB | 34 MB |
| Requires iOS | **12.4** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SHARERING HOLDING LTD](https://appshunter.io/developer/1485851853) | [Seulki Eom](https://appshunter.io/developer/1718927408) |

## What reviewers say

### Luminor.ID

[App page](https://appshunter.io/ios/app/luminorid/id6474107601)

**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 Luminor.ID free?

Luminor.ID 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 Luminor.ID or Round Millisecond Clock have ads?

Round Millisecond Clock shows ads; Luminor.ID does not.

### Which is updated more often, Luminor.ID or Round Millisecond Clock?

Luminor.ID ships an update every 5 weeks, and Round Millisecond Clock every 4 months. Most recently, Luminor.ID was updated on October 7, 2026 and Round Millisecond Clock on September 25, 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.*