# 24 vs Atomic Clock

The clearest difference is price: Atomic Clock at Free against 24's $2.99. Atomic Clock also leads on ratings volume (7 vs 2). 24's advantage is in-app purchases (none vs 2) and chart position (#177 vs unranked). On rating, ads, device support and iOS requirement there is nothing between them.

Atomic Clock is free to download; 24 costs $2.99 up front. Atomic Clock sells 2 in-app purchases, starting at $5.99 per month. 24 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for 24 against 4.9 for Atomic Clock. Both are backed by a comparable volume of ratings — 2 and 7 respectively.

## The numbers

| Metric | 24 | Atomic Clock |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/24-hour-time-calculator/id6748953014/reviews)** | [4.9 (7 ratings)](https://appshunter.io/ios/app/atomic-clock-precision-time/id6760377377/reviews) |
| Number of ratings | 2 | **7** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Monetization | Paid | **Freemium** |
| Best chart rank | **#177** | — |
| Size | 0 MB | 9 MB |
| Requires iOS | 18.5 | **17.6** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Richard Montoya](https://appshunter.io/developer/1762752434) | [家宝 戴](https://appshunter.io/developer/1826395838) |

## What reviewers say

### 24

[App page](https://appshunter.io/ios/app/24-hour-time-calculator/id6748953014)

**Currently charting:** #177 Top Paid · Productivity (US App Store)

Effortlessly add, subtract, and calculate time differences using 24-hour (military) time. Designed for professionals managing schedules and logs, it offers automatic clock wrapping and a persistent time feature for convenience.

**Highlights:** Add/subtract 24-hour time, Calculate time differences, Persistent time feature, Automatic clock wrapping, Simple, modern interface

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

**In-app purchases:** none


### Atomic Clock

[App page](https://appshunter.io/ios/app/atomic-clock-precision-time/id6760377377)

This utility provides highly accurate time synchronization using NTP. View precise time with millisecond detail, compare your device clock to network time, and customize display styles. It's privacy-focused with no tracking or analytics.

**Highlights:** NTP-based time synchronization, Millisecond detail, Local time and UTC display, Offset and latency indicators, Automatic sync, Eight clock styles, Customizable colors, Privacy-focused

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AtomicClock Pro Monthly | $5.99 | per month |
| AtomicClock Pro Monthly | $19.99 | per year |


## Frequently asked questions

### Is 24 free?

24 costs $2.99, with no in-app purchases.

### Is Atomic Clock free?

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

### Which has better reviews, 24 or Atomic Clock?

24 is rated higher. 24 averages 5.0 out of 5 from 2 ratings, while Atomic Clock averages 4.9 from 7 ratings.

### Do 24 or Atomic Clock have ads?

Neither 24 nor Atomic Clock shows 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.*