# Fast Clock vs WiThrottle Cab

The clearest difference is rating: Fast Clock at 3.8 against WiThrottle Cab's 1.0. Fast Clock also leads on in-app purchases (none vs 2) and update cadence (every 2 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. WiThrottle Cab sells 2 in-app purchases, starting at $4.99 per month. Fast Clock asks for nothing beyond the download.

Fast Clock holds the better App Store score, 3.8 against 1.0. That said, the two scores are not equally well evidenced: Fast Clock has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 25% of Fast Clock's written reviews are positive against 0% of WiThrottle Cab's.

Fast Clock ships an update every 2 days, WiThrottle Cab every 3 months. The most recent releases landed on September 20, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Fast Clock | WiThrottle Cab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (5 ratings)](https://appshunter.io/ios/app/fast-clock/id6448879724/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/withrottle-cab/id6746695618/reviews) |
| Number of ratings | **5** | 1 |
| Positive reviews | **25.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 5 MB | 108 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kevin Snow](https://appshunter.io/developer/305581830) | [Kostiantyn Kolesnik](https://appshunter.io/developer/1481627847) |

## 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


### WiThrottle Cab

[App page](https://appshunter.io/ios/app/withrottle-cab/id6746695618)

Transform your mobile device into a wireless controller for your model railroad. Operate trains and manage accessories like turnouts remotely over a Wi-Fi network. Enjoy the freedom to follow your trains around the layout without being tethered by wires.

**Highlights:** Handheld model railroad controller, Wireless operation via Wi-Fi, Control trains and accessories, Follow trains around the layout, Compatible with WiThrottle command stations

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version, monthly | $4.99 | per month |
| Full version, life-time | $49.99 | one-time |


## Frequently asked questions

### Is Fast Clock free?

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

### Is WiThrottle Cab free?

WiThrottle Cab is free to download, with in-app purchases available.

### Which has better reviews, Fast Clock or WiThrottle Cab?

Fast Clock is rated higher. Fast Clock averages 3.8 out of 5 from 5 ratings, while WiThrottle Cab averages 1.0 from 1 ratings.

### Do Fast Clock or WiThrottle Cab have ads?

Neither Fast Clock nor WiThrottle Cab shows ads.

### Which is updated more often, Fast Clock or WiThrottle Cab?

Fast Clock ships an update every 2 days, and WiThrottle Cab every 3 months. Most recently, Fast Clock was updated on September 20, 2026 and WiThrottle Cab on October 10, 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.*