# Fast Clock vs ThrottleCard

The clearest difference is rating: ThrottleCard at 4.3 against Fast Clock's 3.8. ThrottleCard also leads on review sentiment (50% vs 25%) and device support (4 vs 2). Fast Clock's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price and ratings volume there is nothing between them.

Both are free to download. ThrottleCard sells 2 in-app purchases, starting at $0.99 per month. Fast Clock asks for nothing beyond the download.

ThrottleCard holds the better App Store score, 4.3 against 3.8. Both are backed by a comparable volume of ratings — 5 and 11 respectively. Written reviews point the same way: 25% of Fast Clock's written reviews are positive against 50% of ThrottleCard's.

Fast Clock ships an update every 2 days, ThrottleCard weekly. The most recent releases landed on September 20, 2026 and July 6, 2026 respectively.

## The numbers

| Metric | Fast Clock | ThrottleCard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (5 ratings)](https://appshunter.io/ios/app/fast-clock/id6448879724/reviews) | **[4.3 (11 ratings)](https://appshunter.io/ios/app/throttlecard/id6739982126/reviews)** |
| Number of ratings | 5 | **11** |
| Positive reviews | 25.0% of reviews | **50.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Weekly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 5 MB | 117 MB |
| Requires iOS | **15.6** | 17.5 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Kevin Snow](https://appshunter.io/developer/305581830) | [Ryan Gant](https://appshunter.io/developer/941497897) |

## 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


### ThrottleCard

[App page](https://appshunter.io/ios/app/throttlecard/id6739982126)

Control your model railroad with this app featuring vintage-inspired controls and realistic animations. It supports multiple trains, game controllers, and offers advanced features like turnout and route control. A free version is available, with a premium subscription for enhanced functionality.

**Highlights:** Multi-throttle support, Vintage-inspired controls, Game controller integration, Automatic command station discovery, Turnout and route control, Apple Watch support

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ThrottleCard Premium - Monthly | $0.99 | per month |
| ThrottleCard Premium - Yearly | $9.99 | per year |


## Frequently asked questions

### Is Fast Clock free?

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

### Is ThrottleCard free?

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

### Which has better reviews, Fast Clock or ThrottleCard?

ThrottleCard is rated higher. Fast Clock averages 3.8 out of 5 from 5 ratings, while ThrottleCard averages 4.3 from 11 ratings.

### Do Fast Clock or ThrottleCard have ads?

ThrottleCard shows ads; Fast Clock does not.

### Which is updated more often, Fast Clock or ThrottleCard?

Fast Clock ships an update every 2 days, and ThrottleCard weekly. Most recently, Fast Clock was updated on September 20, 2026 and ThrottleCard on July 6, 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.*