# Roller Coaster Kit vs Systems Trainer

The clearest difference is price: Systems Trainer at Free against Roller Coaster Kit's $6.99. Roller Coaster Kit's advantage is iOS requirement (15.0 vs 17.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

Systems Trainer is free to download; Roller Coaster Kit costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Roller Coaster Kit | Systems Trainer |
| --- | --- | --- |
| Price | $6.99 | **Free** |
| Rating | **[4.6 (219 ratings)](https://appshunter.io/ios/app/roller-coaster-kit/id6447486245/reviews)** | — |
| Number of ratings | **219** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Free | — |
| Size | 170 MB | 1000 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Phd Apps LLC](https://appshunter.io/developer/1790286252) | [Patrick Heinrich](https://appshunter.io/developer/1794204930) |

## What reviewers say

### Roller Coaster Kit

[App page](https://appshunter.io/ios/app/roller-coaster-kit/id6447486245)

Design, build, and ride your own roller coasters with an intuitive interface. Create thrilling drops, loops, and twists with easy-to-use tools and a snap-to-grid function for perfect alignment. Test your creations and share them with friends.

**Highlights:** Intuitive track builder, Easy-to-use loop tool, Snap-to-grid function, Design twists and turns, Test and ride coasters, Creative control

**Features:** macOS Compatibility

**In-app purchases:** none


### Systems Trainer

[App page](https://appshunter.io/ios/app/systems-trainer/id6759176885)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Roller Coaster Kit free?

Roller Coaster Kit costs $6.99, with no in-app purchases.

### Is Systems Trainer free?

Systems Trainer is free to download, with no in-app purchases.

### Do Roller Coaster Kit or Systems Trainer have ads?

Neither Roller Coaster Kit nor Systems Trainer shows ads.

### Which is updated more often, Roller Coaster Kit or Systems Trainer?

Roller Coaster Kit ships an update every 2 weeks, and Systems Trainer every 2 weeks. Most recently, Roller Coaster Kit was updated on October 30, 2026 and Systems Trainer on October 25, 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.*