# Ludwig's Math Lite vs Design & Run Train

The clearest difference is ads: Ludwig's Math Lite at none against Design & Run Train's shown. Ludwig's Math Lite also leads on update cadence (every 3 months vs every 47 months) and iOS requirement (6.0 vs 12.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Ludwig's Math Lite ships an update every 3 months, Design & Run Train every 47 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Ludwig's Math Lite | Design & Run Train |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.8 (23 ratings)](https://appshunter.io/ios/app/design-and-run-train/id1550583867/reviews)** |
| Number of ratings | — | **23** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 47 months |
| Monetization | — | Ad-supported |
| Size | 11 MB | 72 MB |
| Requires iOS | **6.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AVIA](https://appshunter.io/developer/390606207) | [Farrukh Ahmad](https://appshunter.io/developer/1446716321) |

## What reviewers say

### Ludwig's Math Lite

[App page](https://appshunter.io/ios/app/ludwigs-math-lite/id732763113)

**Features:** macOS Compatibility

**In-app purchases:** none


### Design & Run Train

[App page](https://appshunter.io/ios/app/design-and-run-train/id1550583867)

Design and build custom trains from various parts and templates. Then, drive your creations on tracks, controlling speed, horns, and switches while experiencing realistic station announcements.

**Highlights:** Design and build custom trains, Control train speed and horns, Use railroad switches, Experience realistic station announcements, Add and remove train wagons, Craft train parts from brick pieces

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ludwig's Math Lite free?

Ludwig's Math Lite is free to download, with no in-app purchases.

### Is Design & Run Train free?

Design & Run Train is free to download, with no in-app purchases.

### Do Ludwig's Math Lite or Design & Run Train have ads?

Design & Run Train shows ads; Ludwig's Math Lite does not.

### Which is updated more often, Ludwig's Math Lite or Design & Run Train?

Ludwig's Math Lite ships an update every 3 months, and Design & Run Train every 47 months. Most recently, Ludwig's Math Lite was updated on October 29, 2026 and Design & Run Train on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*