# 3D STEREOVISION TIME MACHINE 2 vs Toy RollerCoaster 3D

The clearest difference is review sentiment: 3D STEREOVISION TIME MACHINE 2 at 100% against Toy RollerCoaster 3D's 22%. 3D STEREOVISION TIME MACHINE 2 also leads on rating (5.0 vs 2.9) and ads (none vs shown). Toy RollerCoaster 3D's advantage is ratings volume (14 vs 2). On price, update cadence, 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.

3D STEREOVISION TIME MACHINE 2 holds the better App Store score, 5.0 against 2.9. That said, the two scores are not equally well evidenced: Toy RollerCoaster 3D has 14 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of 3D STEREOVISION TIME MACHINE 2's written reviews are positive against 22% of Toy RollerCoaster 3D's.

3D STEREOVISION TIME MACHINE 2 ships an update every 3 months, Toy RollerCoaster 3D every 2 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | 3D STEREOVISION TIME MACHINE 2 | Toy RollerCoaster 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/3d-stereovision-time-machine-2/id432270029/reviews)** | [2.9 (14 ratings)](https://appshunter.io/ios/app/toy-rollercoaster-3d/id957586307/reviews) |
| Number of ratings | 2 | **14** |
| Positive reviews | **100.0% of reviews** | 22.2% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | **Free** | Ad-supported |
| Size | 60 MB | 22 MB |
| Requires iOS | **9.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [John Avatar](https://appshunter.io/developer/375690746) | [Kouichi Hayashi](https://appshunter.io/developer/1809037541) |

## What reviewers say

### 3D STEREOVISION TIME MACHINE 2

[App page](https://appshunter.io/ios/app/3d-stereovision-time-machine-2/id432270029)

Explore historical moments and figures through immersive 3D stereoscopic images. View iconic figures and events from over 150 years ago in a unique, interactive format.

**Highlights:** 3D stereoscopic image viewing, Flipvision animations, Historical portraits and scenes, Vintage music background, Interactive image navigation

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

**In-app purchases:** none


### Toy RollerCoaster 3D

[App page](https://appshunter.io/ios/app/toy-rollercoaster-3d/id957586307)

Design and experience thrilling roller coasters in a 3D simulation. View the scenery from various perspectives, including the driver's seat, and build your own custom tracks.

**Highlights:** 3D coaster simulation, Multiple camera views, Driver's seat perspective, Custom track creation, Scenery viewing

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 3D STEREOVISION TIME MACHINE 2 free?

3D STEREOVISION TIME MACHINE 2 is free to download, with no in-app purchases.

### Is Toy RollerCoaster 3D free?

Toy RollerCoaster 3D is free to download, with no in-app purchases.

### Which has better reviews, 3D STEREOVISION TIME MACHINE 2 or Toy RollerCoaster 3D?

3D STEREOVISION TIME MACHINE 2 is rated higher. 3D STEREOVISION TIME MACHINE 2 averages 5.0 out of 5 from 2 ratings, while Toy RollerCoaster 3D averages 2.9 from 14 ratings.

### Do 3D STEREOVISION TIME MACHINE 2 or Toy RollerCoaster 3D have ads?

Toy RollerCoaster 3D shows ads; 3D STEREOVISION TIME MACHINE 2 does not.

### Which is updated more often, 3D STEREOVISION TIME MACHINE 2 or Toy RollerCoaster 3D?

3D STEREOVISION TIME MACHINE 2 ships an update every 3 months, and Toy RollerCoaster 3D every 2 months. Most recently, 3D STEREOVISION TIME MACHINE 2 was updated on November 1, 2026 and Toy RollerCoaster 3D on November 1, 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.*