Comparison

Rail Model Calc vs DCC Commander

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

Head to head
About

Rail Model Calc

Features
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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. β€’Home mode Home is available simple calculations. Set F1-F10 memory on this screen. β€’Normal mode It is a normal calculator. β€’Straight mode This mode calculates horizontal and vertical lengths when laying a straight rail diagonally. β€’Curve mode This mode calculates the vertical, horizontal, and diagonal lengths when laying a curve rail. β€’S-Curve mode This mode calculates the vertical, horizontal, and diagonal lengths when laying a s-curve rail. β€’Scale X/Y mode This mode calculates the scale. β€’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 Commander

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
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DCC Commander 2.0 lets you operate and manage your model railroad from your iOS device using a compatible DCC Command Station. Requires a DCC-EX Command Station or JMRI WiThrottle server with compatible DCC Command Station. Built for hands-on layout operation, DCC Commander combines multi-cab throttle control, layout viewing, route selection, cab management, turnout definitions, and programming track tools in one app. Features include: - Control multiple throttles from one screen in landscape mode - Use a focused single-throttle view in portrait mode - Assign cabs to throttles with cab IDs, names, and photo images - Configure function buttons, including toggle and momentary behavior - Use software momentum modes for smoother speed changes - View your attached layout directly from the Throttle screen - Swipe across tracks and turnouts to select routes visually - Save and reuse route definitions - Activate turnout routes from the Layout view - Build and edit layout designs with tracks, turnouts, and reusable definitions - Manage turnout templates, turnout definitions, and route definitions - Program cab addresses and CV values on the programming track - Configure saved Command Stations for quick reconnect - Supports DCC-EX network Command Stations - Supports JMRI WiThrottle for compatible throttle operations - Built-in help pages for throttle, cabs, programming, network, builder, settings, workflow, and app information - DCC Commander is free to use after watching a rewarded advertisement, which unlocks throttle access for a 3 hours time. A subscription option is available to remove advertising gates and provide full access. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://electrongoo.com/privacypolicy.html DCC Commander Subscription: A subscription will remove ALL advertisements. Both monthly and annual subscriptions are available. The monthly subscription costs $2.99/Month (USD). The annual subscription costs $29.00/year (USD). Get 12 months for the price of 10 months with an annual subscription. Payment is charged to your iTunes account at confirmation of purchase. Your subscription renews automatically unless you cancel 24 hours before the renewal date. You can manage your subscription in the AppStore on your device. Note: DCC Commander requires compatible model railroad DCC hardware. For DCC-EX Command Station details, visit: https://dcc-ex.com/ex-commandstation/index.html Note: JMRI WiThrottle requires JMRI installation, visit https://www.jmri.org/help/en/html/setup/index.shtml

Screenshots

Rail Model Calc4 screens
DCC Commander4 screens

Verdict

The call

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.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences Β· 5 level
Rail Model Calc versus DCC Commander: the parameters behind the verdict, then further details
ParameterRail Model CalcDCC Commander
PriceFreeFree
Positive reviewsβ€”100.0% of reviews
Update frequencyEvery 14 monthsEvery 3 weeks β€” better
AdsYesNo β€” better
In-app purchasesNo β€” betterYes
Monetizationβ€”Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.415.0 β€” better
Further details β€” not scored
Size13 MB131 MB
Age rating4+4+
DeveloperNobuyuki KumakuraElectrongoo

In-app purchases

None

Rail Model Calc

No in-app purchases

2 purchases

DCC Commander

Subscriptions2
  • DCC Commander - (Monthly)$2.991 Month
  • DCC Commander - (Annual)$29.991 Year

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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