# Fast Clock vs Haplotic TimeSync

The clearest difference is rating: Haplotic TimeSync at 5.0 against Fast Clock's 3.8. Fast Clock's advantage is iOS requirement (15.6 vs 17.6). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Haplotic TimeSync holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 5 and 2 respectively.

## The numbers

| Metric | Fast Clock | Haplotic TimeSync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (5 ratings)](https://appshunter.io/ios/app/fast-clock/id6448879724/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/haplotic-timesync/id6756086545/reviews)** |
| Number of ratings | **5** | 2 |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 days | — |
| Monetization | Free | Free |
| Size | 5 MB | 7 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kevin Snow](https://appshunter.io/developer/305581830) | [Jonsimon Tack](https://appshunter.io/developer/1852754052) |

## What reviewers say

### Fast Clock

[App page](https://appshunter.io/ios/app/fast-clock/id6448879724)

This application simulates a fast clock for model railroads. It allows for custom logos and maps, and can synchronize with external systems like JMRI or use real-time.

**Highlights:** Model railroad fast clock simulation, Custom logo support, Custom map integration, JMRI time synchronization, Real-time clock option

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

**In-app purchases:** none


### Haplotic TimeSync

[App page](https://appshunter.io/ios/app/haplotic-timesync/id6756086545)

This app provides a guided, countdown-based method for manually adjusting clocks. It uses your device as a precise time reference with visual and audio cues to ensure accurate synchronization for multiple clocks.

**Highlights:** Guided countdown synchronization, Precise second-level accuracy, Visual and audio cues, Configurable countdown duration, Customizable audio and visual cues, Distraction-free interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fast Clock free?

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

### Is Haplotic TimeSync free?

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

### Which has better reviews, Fast Clock or Haplotic TimeSync?

Haplotic TimeSync is rated higher. Fast Clock averages 3.8 out of 5 from 5 ratings, while Haplotic TimeSync averages 5.0 from 2 ratings.

### Do Fast Clock or Haplotic TimeSync have ads?

Neither Fast Clock nor Haplotic TimeSync 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.*