Rail Model Track Calc vs Trainventory
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
Trainventory
Organize, track the value of, and create wishlists for your model train collection. Get reminders for new releases and manage your hobby efficiently.
- Organize train collection
- Track costs and value
- Create wishlists
- Wishlist reminders
- User-friendly design
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Trainventory: Organize, Track, and Dream Big with Your Model Train Collection Whether you're a lifelong model train enthusiast or just starting your collection, Trainventory is the essential app to keep everything on track. Effortlessly organize your trains, track their value, and build your dream wishlist – all in one place. Key Features: - Organize Your Collection: Easily catalog your locomotives, carriages, and accessories with detailed entries for model type, brand, and condition. - Track Costs and Value: Keep an eye on how much you’ve invested and monitor the value of your collection over time. - Create Your Wishlist: Never forget that must-have model again – build a wishlist of trains you’re dreaming of adding to your collection. - Get Reminded: Never miss out on a presale or release date with wish list reminders Why Trainventory? • User-friendly design built specifically for model train enthusiasts. • Keep your collection organized anytime, anywhere. • Perfect for collectors of all experience levels. All aboard for the most efficient way to manage your model train hobby. Download Trainventory today and let your collection shine! Start tracking, start organizing, and keep your model train passion on the right track with Trainventory.
Screenshots
Verdict
The clearest difference is review sentiment: Trainventory at 100% against Rail Model Track Calc's 0%. Trainventory also leads on rating (4.6 vs 1.0) and ads (none vs shown). Rail Model Track Calc's advantage is iOS requirement (15.4 vs 18.6). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Trainventory holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Trainventory has 27 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of Rail Model Track Calc's written reviews are positive against 100% of Trainventory's.
Rail Model Track Calc ships an update every 18 months, Trainventory every 3 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.
| Parameter | Rail Model Track Calc | Trainventory |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (2 ratings) | 4.6 (27 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 | 27 — better |
| Update frequency | Every 18 months | Every 3 months — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.4 — better | 18.6 |
| Further details — not scored | ||
| Size | 9 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Nobuyuki Kumakura | Nicholas Eby |
Customer experience
Rail Model Track Calc
Trainventory
In-app purchases
Rail Model Track Calc
No in-app purchases
Trainventory
No in-app purchases
Questions
Is Rail Model Track Calc free?
Is Trainventory free?
Which has better reviews, Rail Model Track Calc or Trainventory?
Do Rail Model Track Calc or Trainventory have ads?
Which is updated more often, Rail Model Track Calc or Trainventory?
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