# Clockify vs Atomic Clock

The clearest difference is in-app purchases: Clockify at none against Atomic Clock's 2. Clockify also leads on iOS requirement (15.0 vs 17.6). On price there is nothing between them.

Both are free to download. Atomic Clock sells 2 in-app purchases, starting at $5.99 per month. Clockify asks for nothing beyond the download.

## The numbers

| Metric | Clockify | Atomic Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (4 ratings)](https://appshunter.io/ios/app/atomic-clock-precision-time/id6760377377/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 6 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 2 MB | 9 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | — | **iPhone** |
| Age rating | 4+ | 4+ |
| Developer | [Xu Liu](https://appshunter.io/developer/1881266701) | [家宝 戴](https://appshunter.io/developer/1826395838) |

## What reviewers say

### Clockify

[App page](https://appshunter.io/ios/app/clockify-world-time-sync/id6759855790)

**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, displaying precise time with millisecond detail. It allows comparison with network time, shows sync offset and latency, and offers various clock styles with customization options. It's designed for users needing a reliable, precise reference clock.

**Highlights:** NTP-based time synchronization, Millisecond time detail, Local time and UTC display, Device offset and network latency indicators, Automatic sync, Multiple clock styles, Customizable colors and night mode

**Features:** macOS Compatibility, Vision Pro 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 Clockify free?

Clockify is free to download, with no in-app purchases.

### Is Atomic Clock free?

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

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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.*