# 遥遥领先时间 vs Atomic Clock

The clearest difference is in-app purchases: 遥遥领先时间 at none against Atomic Clock's 2. 遥遥领先时间 also leads on device support (3 vs 1) and iOS requirement (14.1 vs 17.6). Atomic Clock's advantage is update cadence (every 6 weeks vs every 36 months). On price and ads there is nothing between them.

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

遥遥领先时间 ships an update every 36 months, Atomic Clock every 6 weeks. The most recent releases landed on September 8, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | 遥遥领先时间 | 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 | No |
| Update frequency | Every 36 months | **Every 6 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 16 MB | 9 MB |
| Requires iOS | **14.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [kwai piu cheng](https://appshunter.io/developer/1537763811) | [家宝 戴](https://appshunter.io/developer/1826395838) |

## What reviewers say

### 遥遥领先时间

[App page](https://appshunter.io/ios/app/id6466878942)

**Features:** macOS Compatibility

**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 遥遥领先时间 free?

遥遥领先时间 is free to download, with no in-app purchases.

### Is Atomic Clock free?

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

### Do 遥遥领先时间 or Atomic Clock have ads?

Neither 遥遥领先时间 nor Atomic Clock shows ads.

### Which is updated more often, 遥遥领先时间 or Atomic Clock?

遥遥领先时间 ships an update every 36 months, and Atomic Clock every 6 weeks. Most recently, 遥遥领先时间 was updated on September 8, 2026 and Atomic Clock on September 18, 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.*