# Robot Trains vs Center Stage Studios

The clearest difference is in-app purchases: Center Stage Studios at none against Robot Trains's 1. Center Stage Studios also leads on ads (none vs shown) and update cadence (monthly vs every 45 months). Robot Trains's advantage is iOS requirement (12.0 vs 16.0). On price and device support there is nothing between them.

Both are free to download. Robot Trains sells 1 one-off in-app purchase. Center Stage Studios asks for nothing beyond the download.

Robot Trains ships an update every 45 months, Center Stage Studios monthly. The most recent releases landed on October 27, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Robot Trains | Center Stage Studios |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.7 (6 ratings)](https://appshunter.io/ios/app/robot-trains/id1535163345/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 45 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 205 MB | 70 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tap Tap Tales, SL](https://appshunter.io/developer/953158919) | [Center Stage Studios](https://appshunter.io/developer/1776970646) |

## What reviewers say

### Robot Trains

[App page](https://appshunter.io/ios/app/robot-trains/id1535163345)

Embark on an adventure to save Railworld from a snowstorm by solving over 20 interactive games. Collect energy balls across different worlds to power a rocket and defeat the storm. This app strengthens cognitive skills and is designed for young learners.

**Highlights:** Over 20 interactive mini-games, Strengthens cognitive functions, Reward-based learning system, Approved by pre-school specialists, Available in 7 languages, Interactive learning with visual support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all | $2.99 | one-time |


### Center Stage Studios

[App page](https://appshunter.io/ios/app/center-stage-studios/id6737531118)

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

**In-app purchases:** none


## Frequently asked questions

### Is Robot Trains free?

Robot Trains is free to download, with in-app purchases available.

### Is Center Stage Studios free?

Center Stage Studios is free to download, with no in-app purchases.

### Do Robot Trains or Center Stage Studios have ads?

Robot Trains shows ads; Center Stage Studios does not.

### Which is updated more often, Robot Trains or Center Stage Studios?

Robot Trains ships an update every 45 months, and Center Stage Studios monthly. Most recently, Robot Trains was updated on October 27, 2026 and Center Stage Studios on October 9, 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.*