Comparison

Rail Model Calc vs DCC

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Rail Model Calc

Features
Read full description

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.

About

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.

Highlights
  • Handheld model railroad controller
  • Wireless train operation
  • Control signals and turnouts
  • Accessory control
  • Seamless layout movement
Features
Read full description

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

Rail Model Calc4 screens
DCC4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
Rail Model Calc versus DCC: the parameters behind the verdict, then further details
ParameterRail Model CalcDCC
PriceFreeFree
Rating3.0 (4 ratings) — better
Positive reviews100.0% of reviews
Number of ratings4 — better
Update frequencyEvery 14 monthsEvery 2 weeks — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.415.0 — better
Further details — not scored
Size13 MB120 MB
Age rating4+4+
DeveloperNobuyuki KumakuraKostiantyn Kolesnik

In-app purchases

None

Rail Model Calc

No in-app purchases

5 purchases

DCC

Subscriptions4
  • Cloud services, monthly$2.991 Month
  • Premium control, monthly$7.991 Month
  • Ultimate, monthly$12.991 Month
Show 1 more
  • Premium control, annually$39.991 Year
One-time1
  • Premium control, life-time$119.99

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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