# Millisecond Clock vs Super Flip Clock

The clearest difference is rating: Millisecond Clock at 4.7 against Super Flip Clock's 4.0. Millisecond Clock also leads on ratings volume (131 vs 2) and iOS requirement (15.0 vs 17.0). Super Flip Clock's advantage is ads (none vs shown) and update cadence (every 9 days vs every 6 months). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Millisecond Clock sells 3 one-off in-app purchases and Super Flip Clock sells 3 in-app purchases, starting at $0.29 per month. Whichever you choose, the download price is not the number that matters.

Millisecond Clock holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Millisecond Clock has 131 ratings behind it against 2, so its average is the more settled of the two.

Millisecond Clock ships an update every 6 months, Super Flip Clock every 9 days. The most recent releases landed on October 1, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Millisecond Clock | Super Flip Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (131 ratings)](https://appshunter.io/ios/app/millisecond-clock/id1526615560/reviews)** | [4.0 (2 ratings)](https://appshunter.io/ios/app/super-flip-clock-focus-timer/id1665488058/reviews) |
| Number of ratings | **131** | 2 |
| Positive reviews | 72.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 9 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 4 MB | 18 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Chia-Chun Hsieh](https://appshunter.io/developer/908221958) | [深圳宝乐软件有限公司](https://appshunter.io/developer/1773102040) |

## What reviewers say

### Millisecond Clock

[App page](https://appshunter.io/ios/app/millisecond-clock/id1526615560)

This app displays the most accurate time available, down to the millisecond. It's useful for measuring network delays or video streaming lag by comparing displayed time differences.

**Highlights:** Millisecond precision time display, Accurate timekeeping for iPhone and iPad, Network delay measurement, Video streaming lag analysis, Free to download

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| Special Offer Package | $2.99 | one-time |
| Unlock Themes | $3.99 | one-time |


### Super Flip Clock

[App page](https://appshunter.io/ios/app/super-flip-clock-focus-timer/id1665488058)

A minimalist, full-screen flip clock app designed for focus and everyday display. It offers customizable timers and eye-friendly visuals for extended use, with more features planned for future updates.

**Highlights:** Full-screen flip clock display, Focus timer functionality, Countdown timer, Customizable interface, Landscape mode support, Lightweight and easy to use

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One Month | $0.29 | per month |
| 12 Month | $1.79 | per year |
| Lifetime | $1.99 | one-time |


## Frequently asked questions

### Is Millisecond Clock free?

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

### Is Super Flip Clock free?

Super Flip Clock is free to download, with in-app purchases available.

### Which has better reviews, Millisecond Clock or Super Flip Clock?

Millisecond Clock is rated higher. Millisecond Clock averages 4.7 out of 5 from 131 ratings, while Super Flip Clock averages 4.0 from 2 ratings.

### Do Millisecond Clock or Super Flip Clock have ads?

Millisecond Clock shows ads; Super Flip Clock does not.

### Which is updated more often, Millisecond Clock or Super Flip Clock?

Millisecond Clock ships an update every 6 months, and Super Flip Clock every 9 days. Most recently, Millisecond Clock was updated on October 1, 2026 and Super Flip Clock on October 2, 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.*