# Round Millisecond Clock vs Marchive

The clearest difference is review sentiment: Marchive at 100% against Round Millisecond Clock's 0%. Marchive also leads on ads (none vs shown) and update cadence (weekly vs every 4 months). Round Millisecond Clock's advantage is in-app purchases (none vs 5) and iOS requirement (13.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. Marchive sells 5 in-app purchases, starting at $1.99 per month. Round Millisecond Clock asks for nothing beyond the download.

Round Millisecond Clock ships an update every 4 months, Marchive weekly. The most recent releases landed on September 25, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Round Millisecond Clock | Marchive |
| --- | --- | --- |
| 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 | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | **Ad-supported** | Freemium |
| Size | 34 MB | 86 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Seulki Eom](https://appshunter.io/developer/1718927408) | [YONGHUN JEONG](https://appshunter.io/developer/1817304133) |

## What reviewers say

### 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


### Marchive

[App page](https://appshunter.io/ios/app/marchive/id6746523376)

This app offers a private space to archive daily life, capturing moments with photos, words, and feelings. It focuses on intimate sharing with close friends and family, organizing memories into beautiful collections without the pressure of trends or likes.

**Highlights:** Archive daily life with photos, text, and emotions, Organize moments into collections, Share specific collections with friends/family, Communicate through comments and chat, Keep all content private and invite-only

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Marchive Plus Monthly | $1.99 | per month |
| Marchive Plus Yearly | $19.99 | per year |
| Arc 40 Pack | $1.99 | one-time |
| Arc 120 Pack | $4.99 | one-time |
| Arc 320 Pack | $9.99 | one-time |


## Frequently asked questions

### Is Round Millisecond Clock free?

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

### Is Marchive free?

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

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

Round Millisecond Clock shows ads; Marchive does not.

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

Round Millisecond Clock ships an update every 4 months, and Marchive weekly. Most recently, Round Millisecond Clock was updated on September 25, 2026 and Marchive on October 12, 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.*