# WiThrottle Lite vs Rail Model Calc

The clearest difference is ads: WiThrottle Lite at none against Rail Model Calc's shown. WiThrottle Lite also leads on update cadence (every 3 months vs every 14 months) and iOS requirement (11.0 vs 15.4). On price, in-app purchases and device support there is nothing between them.

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

WiThrottle Lite ships an update every 3 months, Rail Model Calc every 14 months. The most recent releases landed on August 17, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | WiThrottle Lite | Rail Model Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (34 ratings)](https://appshunter.io/ios/app/withrottle-lite/id344190130/reviews)** | — |
| Number of ratings | **34** | — |
| Positive reviews | 77.8% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 14 months |
| Monetization | Free | — |
| Size | 6 MB | 13 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 Lite

[App page](https://appshunter.io/ios/app/withrottle-lite/id344190130)

Control your model railroad trains wirelessly from your mobile device. This app acts as a throttle, connecting to JMRI software or specific hardware modules for seamless operation. Enjoy basic DCC throttle functions, speed and direction control, and function access.

**Highlights:** Wireless DCC throttle, Speed and direction control, F0 - F68 function control, Acquire addresses wirelessly, Adjust throttle slider sensitivity, Automatic networking, Flashlight feature

**Features:** Vision Pro support

**In-app purchases:** none


### Rail Model Calc

[App page](https://appshunter.io/ios/app/rail-model-calc/id6474500872)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is WiThrottle Lite free?

WiThrottle Lite is free to download, with no in-app purchases.

### Is Rail Model Calc free?

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

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

Rail Model Calc shows ads; WiThrottle Lite does not.

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

WiThrottle Lite ships an update every 3 months, and Rail Model Calc every 14 months. Most recently, WiThrottle Lite was updated on August 17, 2026 and Rail Model Calc on September 13, 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.*