Rail Model Calc vs DCC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Rail Model Calc
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Overview This is a calculator app that includes calculation functions necessary when playing with railroad model. How to use After launching the app,the first screen that appears is the Home screen, which also serves as a menu. Swipe and tap the menu on the Home screen to transition to various calculation modes. You can use various calculation modes to perform calculations necessary for railway model track length and railway model production. This App offer the following calculation modes. •Home mode Home is available simple calculations. Set F1-F10 memory on this screen. •Normal mode It is a normal calculator. •Straight mode This mode calculates horizontal and vertical lengths when laying a straight rail diagonally. •Curve mode This mode calculates the vertical, horizontal, and diagonal lengths when laying a curve rail. •S-Curve mode This mode calculates the vertical, horizontal, and diagonal lengths when laying a s-curve rail. •Scale X/Y mode This mode calculates the scale. •Inch to MM mode This mode converts yards and inches to millimeters. For details on how to use it, there is a manual on "?" button. Disclaimer This calculator is for the railroad modeling hobby. The calculation results is the numerical value which be calculated by the developer. It may be different from the numerical value by model manufacturer. In particular, commercially available railroad model rails allow for dimensional errors. Therefore, the calculation results do not necessarily represent what the track layout cannot or can be done. This application is subject to change without notice. The developer assumes no responsibility for any loss or claims by third parties which may arise from the use of this application.
DCC
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.
- Handheld model railroad controller
- Wireless train operation
- Control signals and turnouts
- Accessory control
- Seamless layout movement
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DCC-EX Cab is an application that turns your devices into handheld controllers for your model railroad. With DCC-EX Cab you can follow your trains around your layout without having to worry about plugging and unplugging a wired device as you move along. Using a wireless network connection and a DCC-EX command station connected to the network, DCC-EX Cab can be used to run trains and for controlling signals, turnouts, and other accessories that are configured in the command station.
Screenshots
Verdict
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.
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. 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.
| Parameter | Rail Model Calc | DCC |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (4 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Every 14 months | Every 2 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.4 | 15.0 — better |
| Further details — not scored | ||
| Size | 13 MB | 120 MB |
| Age rating | 4+ | 4+ |
| Developer | Nobuyuki Kumakura | Kostiantyn Kolesnik |
In-app purchases
Rail Model Calc
No in-app purchases
DCC
- Cloud services, monthly$2.991 Month
- Premium control, monthly$7.991 Month
- Ultimate, monthly$12.991 Month
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- Premium control, annually$39.991 Year
- Premium control, life-time$119.99








