Train Throttle vs Fast Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Train Throttle
Control your DCC model trains wirelessly from your Mac, iPhone, or iPad. Manage multiple engines, set turnouts, and toggle routes. A free trial offers core functionality, with a subscription unlocking advanced features.
- Wireless DCC train control
- Control multiple engines/consists
- Set turnouts and toggle routes
- Free trial with core features
- Full feature subscription
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Train Throttle is a fully featured client for the JMRI WiThrottle server, which allows you to control your DCC equipped model trains using your iPhone or iPad and a compatible WiThrottle server. You can control multiple engines or consists, set turnouts, toggle routes, and more. The free trial is unlimited! However, certain features are disabled, including: * Turnout control * Route control * Roster lists * Functions 13-68 * Some Customization features The use of this app is covered by Apple's EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ This app respects your privacy: https://drewhoffman.net/trainthrottle/privacy.html
Fast Clock
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.
- Model railroad fast clock simulation
- Custom logo support
- Custom map integration
- JMRI time synchronization
- Real-time clock option
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A model railroad fast clock app Supports custom logos Supports custom maps Can read time from JMRI, the built-in fast clock, or real time
Screenshots
Verdict
The clearest difference is review sentiment: Train Throttle at 100% against Fast Clock's 25%. Train Throttle also leads on rating (5.0 vs 3.8). Fast Clock's advantage is in-app purchases (none vs 3) and update cadence (every 2 days vs every 2 months). On price, ratings volume, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Train Throttle sells 3 in-app purchases, starting at $1.99 per year. Fast Clock asks for nothing beyond the download.
Train Throttle holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 2 and 5 respectively. Written reviews point the same way: 100% of Train Throttle's written reviews are positive against 25% of Fast Clock's.
Train Throttle ships an update every 2 months, Fast Clock every 2 days. The most recent releases landed on September 28, 2026 and October 7, 2026 respectively.
| Parameter | Train Throttle | Fast Clock |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 3.8 (5 ratings) |
| Positive reviews | 100.0% of reviews — better | 25.0% of reviews |
| Number of ratings | 2 | 5 — better |
| Update frequency | Every 2 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, Mac — better | iPhone, iPod |
| Requires iOS | 16.1 | 15.6 — better |
| Further details — not scored | ||
| Size | 6 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Drew Hoffman | Kevin Snow |
Customer experience
Train Throttle
Fast Clock
In-app purchases
Train Throttle
- Subscribe$1.991 Year
- Tip a Coffee$3.99
- Purchase$12.99
Fast Clock
No in-app purchases
