# Rail Model Calc vs DCC

The clearest difference is in-app purchases: Rail Model Calc at none against DCC's 5. DCC's advantage is ads (none vs shown) and update cadence (every 2 weeks vs every 14 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. DCC sells 5 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 every 2 weeks. The most recent releases landed on September 13, 2026 and August 13, 2026 respectively.

## The numbers

| Metric | Rail Model Calc | DCC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (4 ratings)](https://appshunter.io/ios/app/dcc-ex-cab/id6695754417/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 14 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 13 MB | 120 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) | [Kostiantyn Kolesnik](https://appshunter.io/developer/1481627847) |

## 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

[App page](https://appshunter.io/ios/app/dcc-ex-cab/id6695754417)

Transform your mobile devices into wireless controllers for your model railroad. Manage trains, signals, and accessories remotely without wired connections. Ideal for seamless operation around your layout.

**Highlights:** Handheld model railroad controller, Wireless train operation, Control signals and turnouts, Accessory control, Seamless layout movement

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cloud services, monthly | $2.99 | per month |
| Premium control, monthly | $7.99 | per month |
| Ultimate, monthly | $12.99 | per month |
| Premium control, annually | $39.99 | per year |
| Premium control, life-time | $119.99 | one-time |


## Frequently asked questions

### Is Rail Model Calc free?

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

### Is DCC free?

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

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

Rail Model Calc shows ads; DCC does not.

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

Rail Model Calc ships an update every 14 months, and DCC every 2 weeks. Most recently, Rail Model Calc was updated on September 13, 2026 and DCC on August 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.*