# WiThrottle vs Rail Model Track Calc

The clearest difference is review sentiment: WiThrottle at 83% against Rail Model Track Calc's 0%. WiThrottle also leads on rating (4.3 vs 1.0) and ads (none vs shown). Rail Model Track Calc's advantage is price (Free vs $9.99). On in-app purchases and device support there is nothing between them.

Rail Model Track Calc is free to download; WiThrottle costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

WiThrottle holds the better App Store score, 4.3 against 1.0. That said, the two scores are not equally well evidenced: WiThrottle has 40 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 83% of WiThrottle's written reviews are positive against 0% of Rail Model Track Calc's.

WiThrottle ships an update every 2 months, Rail Model Track Calc every 18 months. The most recent releases landed on September 23, 2026 and August 6, 2026 respectively.

## The numbers

| Metric | WiThrottle | Rail Model Track Calc |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[4.3 (40 ratings)](https://appshunter.io/ios/app/withrottle/id344172578/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/rail-model-track-calc/id1529070758/reviews) |
| Number of ratings | **40** | 1 |
| Positive reviews | **83.1% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 18 months |
| Monetization | Paid | **Ad-supported** |
| Size | 6 MB | 9 MB |
| Requires iOS | **11.0** | 15.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Beth Hoffman](https://appshunter.io/developer/344172581) | [Nobuyuki Kumakura](https://appshunter.io/developer/1529070760) |

## What reviewers say

### WiThrottle

[App page](https://appshunter.io/ios/app/withrottle/id344172578)

Control your model railroad trains wirelessly using your mobile device. This app connects to JMRI software or specific hardware modules for comprehensive throttle, address, and function management.

**Highlights:** Wireless throttle control, JMRI integration, Function controls F0-F68, Control routes & turnouts, Import roster & function labels, Acquire & dispatch addresses

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use interface
- 🚀 Works great with JMRI
- 📱 Controls trains wirelessly
- 💡 Excellent value for money
- 🔧 Great customer support

**What reviewers complain about**

- 🐛 Connection drops when backgrounded
- 🐛 JMRI connection issues
- 🐛 Some features not working
- 🐛 UI could be improved
- 🐛 Limited on iPhone vs iPad

**Reported bugs**

- Power ON/OFF broken
- Horn gets stuck on with DCC-EX
- Minor glitchy unresponsive throttle slider
- App would not connect to JMRI 5.2
- Connection to JMRI server drops when app goes to background

**Requested features**

- Support for DCC-EX
- Night mode and dark mode
- Turnout/Points control in main UI
- Routes support with MRC Wi-Fi module
- Customizable features like Android app


### Rail Model Track Calc

[App page](https://appshunter.io/ios/app/rail-model-track-calc/id1529070758)

Easily calculate horizontal and vertical dimensions for diagonal railroad model track layouts. Input track length and angle to get precise measurements for combining different track pieces. Avoid guesswork and ensure accurate model railway construction.

**Highlights:** Calculate horizontal and vertical track lengths, Input track length and angle, Precise measurements in 0.5 mm increments, Error margin less than 0.5mm, Reset function for calculations, Designed for railroad modeling hobbyists

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is WiThrottle free?

WiThrottle costs $9.99, with no in-app purchases.

### Is Rail Model Track Calc free?

Rail Model Track Calc is free to download, with no in-app purchases.

### Which has better reviews, WiThrottle or Rail Model Track Calc?

WiThrottle is rated higher. WiThrottle averages 4.3 out of 5 from 40 ratings, while Rail Model Track Calc averages 1.0 from 1 ratings.

### Do WiThrottle or Rail Model Track Calc have ads?

Rail Model Track Calc shows ads; WiThrottle does not.

### Which is updated more often, WiThrottle or Rail Model Track Calc?

WiThrottle ships an update every 2 months, and Rail Model Track Calc every 18 months. Most recently, WiThrottle was updated on September 23, 2026 and Rail Model Track Calc on August 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.*