Comparison

Rail Model Track Calc vs Quick Shot eForm

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

Head to head
About

Rail Model Track Calc

Easily calculate horizontal and vertical dimensions for diagonal railroad model track layouts. Input track length and angle to get precise measurements for combining different track pieces. Avoid guesswork and ensure accurate model railway construction.

Highlights
  • Calculate horizontal and vertical track lengths
  • Input track length and angle
  • Precise measurements in 0.5 mm increments
  • Error margin less than 0.5mm
  • Reset function for calculations
  • Designed for railroad modeling hobbyists
Features
Read full description

Overview This is an application that can calculate the horizontal and vertical lengths when laying out the railroad model tracks diagonally. For example, when a straight track is laid out after laying a curved track(e.g. 45° angle). Or straight tracks after laying out railroad points (e.g. 15°) etc. If you lay out the track diagonally like this, It is necessary to know the horizontal and vertical dimensions in order to combine other tracks to create a layout. But, it is troublesome to calculate the size. There is also need to rely on intuition. So please, use this application. This application you can easily calculate the dimensions of the track. How to use 1. Enter a millimeter number for the track length. 2. Select an angle. 3. The Horizontal, Difference, and Vertical, which are the calculation results, are displayed. Decimal point can be used. Calculation result As the calculation result, the horizontal length (angle 0°), horizontal difference, and vertical length are displayed in units of 0.5 mm. The error of the calculation result is less than 0.5mm Reset button The numbers and angles are reset. 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

Quick Shot eForm

Features
Read full description

Quick Shot streamlines completing the ATF eForm 4 by automatically filling the form's fields from data you've already entered, so you don't have to retype the same information across every submission. Designed for licensed dealers and individuals who file this paperwork regularly, Quick Shot reduces manual data entry, cuts transcription errors, and keeps your scheduled appointments organized in one place. FEATURES - Autofill ATF eForm 4 fields from your saved details - Keep the day's scheduled appointments in one simple list - Step through each section of the form in order - Review your entries before completing the form

Screenshots

Rail Model Track Calc4 screens
Quick Shot eForm3 screens

Verdict

The call

The clearest difference is ads: Quick Shot eForm at none against Rail Model Track Calc's shown. Quick Shot eForm also leads on update cadence (every 11 days vs every 18 months). Rail Model Track Calc's advantage is iOS requirement (15.4 vs 26.5). On price, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Rail Model Track Calc ships an update every 18 months, Quick Shot eForm every 11 days. The most recent releases landed on October 6, 2026 and October 14, 2026 respectively.

Scorecard3 real differences · 7 level
Rail Model Track Calc versus Quick Shot eForm: the parameters behind the verdict, then further details
ParameterRail Model Track CalcQuick Shot eForm
PriceFreeFree
Rating1.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 18 monthsEvery 11 days — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.4 — better26.5
Further details — not scored
Size9 MB13 MB
Age rating4+4+
DeveloperNobuyuki KumakuraBrad Smith

In-app purchases

None

Rail Model Track Calc

No in-app purchases

None

Quick Shot eForm

No in-app purchases

Questions

Is Rail Model Track Calc free?
Rail Model Track Calc is free to download, with no in-app purchases.
Is Quick Shot eForm free?
Quick Shot eForm is free to download, with no in-app purchases.
Do Rail Model Track Calc or Quick Shot eForm have ads?
Rail Model Track Calc shows ads; Quick Shot eForm does not.
Which is updated more often, Rail Model Track Calc or Quick Shot eForm?
Rail Model Track Calc ships an update every 18 months, and Quick Shot eForm every 11 days. Most recently, Rail Model Track Calc was updated on October 6, 2026 and Quick Shot eForm on October 14, 2026.

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