# Rail Model Calc vs DCC Commander

The clearest difference is in-app purchases: Rail Model Calc at none against DCC Commander's 2. DCC Commander's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 14 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. DCC Commander sells 2 in-app purchases, starting at $2.99 per month. Rail Model Calc asks for nothing beyond the download.

Rail Model Calc ships an update every 14 months, DCC Commander every 3 weeks. The most recent releases landed on September 13, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Rail Model Calc | DCC Commander |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 14 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 13 MB | 131 MB |
| Requires iOS | 15.4 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nobuyuki Kumakura](https://appshunter.io/developer/1529070760) | [Electrongoo](https://appshunter.io/developer/351416422) |

## What reviewers say

### Rail Model Calc

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

**Features:** macOS Compatibility

**In-app purchases:** none


### DCC Commander

[App page](https://appshunter.io/ios/app/dcc-commander/id6498150761)

Control your model railroad with a DCC-EX Command Station on your iOS device. Manage multiple throttles, program configuration variables, and customize settings for a personalized experience. Enjoy a free, full-featured product with optional subscriptions to remove ads.

**Highlights:** Control up to 10 throttles, Configure unlimited cabs, Program configuration variables, One-time network setup, Customizable product settings, In-app help page

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DCC Commander - (Monthly) | $2.99 | per month |
| DCC Commander - (Annual) | $29.99 | per year |


## Frequently asked questions

### Is Rail Model Calc free?

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

### Is DCC Commander free?

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

### Do Rail Model Calc or DCC Commander have ads?

Rail Model Calc shows ads; DCC Commander does not.

### Which is updated more often, Rail Model Calc or DCC Commander?

Rail Model Calc ships an update every 14 months, and DCC Commander every 3 weeks. Most recently, Rail Model Calc was updated on September 13, 2026 and DCC Commander on September 20, 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.*